/***************************************************************************\
|*                                                                           *|
|*      Copyright 2005-2008 NVIDIA Corporation.  All rights reserved.        *|
|*                                                                           *|     
|*   NOTICE TO USER:                                                         *|                 
|*                                                                           *|
|*   This source code is subject to NVIDIA ownership rights under U.S.       *|
|*   and international Copyright laws.  Users and possessors of this         *| 
|*   source code are hereby granted a nonexclusive, royalty-free             *|
|*   license to use this code in individual and commercial software.         *|
|*                                                                           *|
|*   NVIDIA MAKES NO REPRESENTATION ABOUT THE SUITABILITY OF THIS SOURCE     *|
|*   CODE FOR ANY PURPOSE. IT IS PROVIDED "AS IS" WITHOUT EXPRESS OR         *|
|*   IMPLIED WARRANTY OF ANY KIND. NVIDIA DISCLAIMS ALL WARRANTIES WITH      *|
|*   REGARD TO THIS SOURCE CODE, INCLUDING ALL IMPLIED WARRANTIES OF         *|
|*   MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR          *|
|*   PURPOSE. IN NO EVENT SHALL NVIDIA BE LIABLE FOR ANY SPECIAL,            *|
|*   INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES          *|
|*   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN      *|
|*   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING     *|
|*   OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE      *| 
|*   CODE.                                                                   *|
|*                                                                           *|
|*   U.S. Government End Users. This source code is a "commercial item"      *|
|*   as that term is defined at 48 C.F.R. 2.101 (OCT 1995), consisting       *|
|*   of "commercial computer  software" and "commercial computer software    *|
|*   documentation" as such terms are used in 48 C.F.R. 12.212 (SEPT 1995)   *|
|*   and is provided to the U.S. Government only as a commercial end item.   *|
|*   Consistent with 48 C.F.R.12.212 and 48 C.F.R. 227.7202-1 through        *|
|*   227.7202-4 (JUNE 1995), all U.S. Government End Users acquire the       *|
|*   source code with only those rights set forth herein.                    *|
|*                                                                           *|
|*   Any use of this source code in individual and commercial software must  *| 
|*   include, in the user documentation and internal comments to the code,   *| 
|*   the above Disclaimer and U.S. Government End Users Notice.              *|
|*                                                                           *|
|*                                                                           *|
 \***************************************************************************/
///////////////////////////////////////////////////////////////////////////////
//
// Date: Aug 24, 2008
// File: nvapi.h
//
// NvAPI provides an interface to NVIDIA devices. This file contains the 
// interface constants, structure definitions and function prototypes.
//
// Target Profile: developer
// Target OS-Arch: windows
//
///////////////////////////////////////////////////////////////////////////////
#ifndef _NVAPI_H
#define _NVAPI_H

#pragma pack(push,8) // Make sure we have consistent structure packings

#ifdef __cplusplus
extern "C" {
#endif

// ====================================================
// Universal NvAPI Definitions
// ====================================================
#ifndef _WIN32
#define __cdecl
#endif

#define NVAPI_INTERFACE extern NvAPI_Status __cdecl 

/* 64-bit types for compilers that support them, plus some obsolete variants */
#if defined(__GNUC__) || defined(__arm) || defined(__IAR_SYSTEMS_ICC__) || defined(__ghs__) || defined(_WIN64)
typedef unsigned long long NvU64; /* 0 to 18446744073709551615          */
#else
typedef unsigned __int64   NvU64; /* 0 to 18446744073709551615              */
#endif

// mac os 32-bit still needs this
#if (defined(macintosh) || defined(__APPLE__)) && !defined(__LP64__)
typedef signed long        NvS32; /* -2147483648 to 2147483647               */
#else
typedef signed int         NvS32; /* -2147483648 to 2147483647               */
#endif

typedef unsigned long    NvU32;
typedef unsigned short   NvU16;
typedef unsigned char    NvU8;

#define NV_DECLARE_HANDLE(name) struct name##__ { int unused; }; typedef struct name##__ *name

// NVAPI Handles - These handles are retrieved from various calls and passed in to others in NvAPI
//                 These are meant to be opaque types.  Do not assume they correspond to indices, HDCs,
//                 display indexes or anything else.
//
//                 Most handles remain valid until a display re-configuration (display mode set) or GPU
//                 reconfiguration (going into or out of SLI modes) occurs.  If NVAPI_HANDLE_INVALIDATED
//                 is received by an app, it should discard all handles, and re-enumerate them.
//
NV_DECLARE_HANDLE(NvDisplayHandle);            // Display Device driven by NVIDIA GPU(s) (an attached display)
NV_DECLARE_HANDLE(NvUnAttachedDisplayHandle);  // Unattached Display Device driven by NVIDIA GPU(s)
NV_DECLARE_HANDLE(NvLogicalGpuHandle);         // One or more physical GPUs acting in concert (SLI)
NV_DECLARE_HANDLE(NvPhysicalGpuHandle);        // A single physical GPU
NV_DECLARE_HANDLE(NvEventHandle);              // A handle to an event registration instance

#define NVAPI_DEFAULT_HANDLE        0

#define NVAPI_GENERIC_STRING_MAX    4096
#define NVAPI_LONG_STRING_MAX       256
#define NVAPI_SHORT_STRING_MAX      64

typedef struct 
{
    NvS32   sX;
    NvS32   sY;
    NvS32   sWidth;
    NvS32   sHeight;
} NvSBox;

#define NVAPI_MAX_PHYSICAL_GPUS             64
#define NVAPI_MAX_LOGICAL_GPUS              64
#define NVAPI_MAX_AVAILABLE_GPU_TOPOLOGIES  256
#define NVAPI_MAX_GPU_TOPOLOGIES            NVAPI_MAX_PHYSICAL_GPUS
#define NVAPI_MAX_GPU_PER_TOPOLOGY          8
#define NVAPI_MAX_DISPLAY_HEADS             2
#define NVAPI_MAX_DISPLAYS                  NVAPI_MAX_PHYSICAL_GPUS * NVAPI_MAX_DISPLAY_HEADS

#define NV_MAX_HEADS        4   // Maximum heads, each with NVAPI_DESKTOP_RES resolution
#define NV_MAX_VID_STREAMS  4   // Maximum input video streams, each with a NVAPI_VIDEO_SRC_INFO
#define NV_MAX_VID_PROFILES 4   // Maximum output video profiles supported

typedef char NvAPI_String[NVAPI_GENERIC_STRING_MAX];
typedef char NvAPI_LongString[NVAPI_LONG_STRING_MAX];
typedef char NvAPI_ShortString[NVAPI_SHORT_STRING_MAX];

// =========================================================================================
// NvAPI Version Definition
// Maintain per structure specific version define using the MAKE_NVAPI_VERSION macro.
// Usage: #define NV_GENLOCK_STATUS_VER  MAKE_NVAPI_VERSION(NV_GENLOCK_STATUS, 1)
// =========================================================================================
#define MAKE_NVAPI_VERSION(typeName,ver) (NvU32)(sizeof(typeName) | ((ver)<<16))
#define GET_NVAPI_VERSION(ver) (NvU32)((ver)>>16)
#define GET_NVAPI_SIZE(ver) (NvU32)((ver) & 0xffff)

// ====================================================
// NvAPI Status Values
//    All NvAPI functions return one of these codes.
// ====================================================


typedef enum 
{
    NVAPI_OK                                    =  0,      // Success
    NVAPI_ERROR                                 = -1,      // Generic error
    NVAPI_LIBRARY_NOT_FOUND                     = -2,      // nvapi.dll can not be loaded
    NVAPI_NO_IMPLEMENTATION                     = -3,      // not implemented in current driver installation
    NVAPI_API_NOT_INTIALIZED                    = -4,      // NvAPI_Initialize has not been called (successfully)
    NVAPI_INVALID_ARGUMENT                      = -5,      // invalid argument
    NVAPI_NVIDIA_DEVICE_NOT_FOUND               = -6,      // no NVIDIA display driver was found
    NVAPI_END_ENUMERATION                       = -7,      // no more to enum
    NVAPI_INVALID_HANDLE                        = -8,      // invalid handle
    NVAPI_INCOMPATIBLE_STRUCT_VERSION           = -9,      // an argument's structure version is not supported
    NVAPI_HANDLE_INVALIDATED                    = -10,     // handle is no longer valid (likely due to GPU or display re-configuration)
    NVAPI_OPENGL_CONTEXT_NOT_CURRENT            = -11,     // no NVIDIA OpenGL context is current (but needs to be)
    NVAPI_NO_GL_EXPERT                          = -12,     // OpenGL Expert is not supported by the current drivers
    NVAPI_INSTRUMENTATION_DISABLED              = -13,     // OpenGL Expert is supported, but driver instrumentation is currently disabled
    NVAPI_EXPECTED_LOGICAL_GPU_HANDLE           = -100,    // expected a logical GPU handle for one or more parameters
    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE          = -101,    // expected a physical GPU handle for one or more parameters
    NVAPI_EXPECTED_DISPLAY_HANDLE               = -102,    // expected an NV display handle for one or more parameters
    NVAPI_INVALID_COMBINATION                   = -103,    // used in some commands to indicate that the combination of parameters is not valid
    NVAPI_NOT_SUPPORTED                         = -104,    // Requested feature not supported in the selected GPU
    NVAPI_PORTID_NOT_FOUND                      = -105,    // NO port ID found for I2C transaction
    NVAPI_EXPECTED_UNATTACHED_DISPLAY_HANDLE    = -106,    // expected an unattached display handle as one of the input param
    NVAPI_INVALID_PERF_LEVEL                    = -107,    // invalid perf level 
    NVAPI_DEVICE_BUSY                           = -108,    // device is busy, request not fulfilled
    NVAPI_NV_PERSIST_FILE_NOT_FOUND             = -109,    // NV persist file is not found
    NVAPI_PERSIST_DATA_NOT_FOUND                = -110,    // NV persist data is not found
    NVAPI_EXPECTED_TV_DISPLAY                   = -111,    // expected TV output display
    NVAPI_EXPECTED_TV_DISPLAY_ON_DCONNECTOR     = -112,    // expected TV output on D Connector - HDTV_EIAJ4120.
    NVAPI_NO_ACTIVE_SLI_TOPOLOGY                = -113,    // SLI is not active on this device
    NVAPI_SLI_RENDERING_MODE_NOTALLOWED         = -114,    // setup of SLI rendering mode is not possible right now
    NVAPI_EXPECTED_DIGITAL_FLAT_PANEL           = -115,    // expected digital flat panel
    NVAPI_ARGUMENT_EXCEED_MAX_SIZE              = -116,    // argument exceeds expected size
    NVAPI_DEVICE_SWITCHING_NOT_ALLOWED          = -117,    // inhibit ON due to one of the flags in NV_GPU_DISPLAY_CHANGE_INHIBIT or SLI Active
    NVAPI_TESTING_CLOCKS_NOT_SUPPORTED          = -118,    // testing clocks not supported
    NVAPI_UNKNOWN_UNDERSCAN_CONFIG              = -119,    // the specified underscan config is from an unknown source (e.g. INF)
    NVAPI_TIMEOUT_RECONFIGURING_GPU_TOPO        = -120,    // timeout while reconfiguring GPUs
    NVAPI_DATA_NOT_FOUND                        = -121,    // Requested data was not found
    NVAPI_EXPECTED_ANALOG_DISPLAY               = -122,    // expected analog display
    NVAPI_NO_VIDLINK                            = -123,    // No SLI video bridge present
    NVAPI_REQUIRES_REBOOT                       = -124,    // NVAPI requires reboot for its settings to take effect
    NVAPI_INVALID_HYBRID_MODE                   = -125,    // the function is not supported with the current hybrid mode.
    NVAPI_MIXED_TARGET_TYPES                    = -126,    // The target types are not all the same
    NVAPI_SYSWOW64_NOT_SUPPORTED                = -127,    // the function is not supported from 32-bit on a 64-bit system
    NVAPI_IMPLICIT_SET_GPU_TOPOLOGY_CHANGE_NOT_ALLOWED = -128,    //there is any implicit GPU topo active. Use NVAPI_SetHybridMode to change topology.
    NVAPI_REQUEST_USER_TO_CLOSE_NON_MIGRATABLE_APPS = -129,      //Prompt the user to close all non-migratable apps.    
    NVAPI_OUT_OF_MEMORY                         = -130,    // Could not allocate sufficient memory to complete the call
    NVAPI_WAS_STILL_DRAWING                     = -131,    // The previous operation that is transferring information to or from this surface is incomplete
    NVAPI_FILE_NOT_FOUND                        = -132,    // The file was not found
    NVAPI_TOO_MANY_UNIQUE_STATE_OBJECTS         = -133,    // There are too many unique instances of a particular type of state object
    NVAPI_INVALID_CALL                          = -134,    // The method call is invalid. For example, a method's parameter may not be a valid pointer
    NVAPI_D3D10_1_LIBRARY_NOT_FOUND             = -135,    // d3d10_1.dll can not be loaded
    NVAPI_FUNCTION_NOT_FOUND                    = -136,    // Couldn't find the function in loaded dll library
} NvAPI_Status;

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_Initialize
//
//   DESCRIPTION: Initializes NVAPI library. This must be called before any 
//                other NvAPI_ function.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_ERROR            Something is wrong during the initialization process (generic error)
//                NVAPI_LIBRARYNOTFOUND  Can not load nvapi.dll
//                NVAPI_OK                  Initialized
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_Initialize();

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetErrorMessage
//
//   DESCRIPTION: converts an NvAPI error code into a null terminated string
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: null terminated string (always, never NULL)
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetErrorMessage(NvAPI_Status nr,NvAPI_ShortString szDesc);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetInterfaceVersionString
//
//   DESCRIPTION: Returns a string describing the version of the NvAPI library.
//                Contents of the string are human readable.  Do not assume a fixed
//                format.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: User readable string giving info on NvAPI's version
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetInterfaceVersionString(NvAPI_ShortString szDesc);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetDisplayDriverVersion
//
//   DESCRIPTION: Returns a struct that describes aspects of the display driver
//                build.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_ERROR or NVAPI_OK
//
///////////////////////////////////////////////////////////////////////////////
typedef struct 
{
    NvU32              version;             // Structure version
    NvU32              drvVersion;           
    NvU32              bldChangeListNum;     
    NvAPI_ShortString  szBuildBranchString; 
    NvAPI_ShortString  szAdapterString;
} NV_DISPLAY_DRIVER_VERSION;
#define NV_DISPLAY_DRIVER_VERSION_VER  MAKE_NVAPI_VERSION(NV_DISPLAY_DRIVER_VERSION,1)
NVAPI_INTERFACE NvAPI_GetDisplayDriverVersion(NvDisplayHandle hNvDisplay, NV_DISPLAY_DRIVER_VERSION *pVersion);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_EnumNvidiaDisplayHandle
//
//   DESCRIPTION: Returns the handle of the NVIDIA display specified by the enum 
//                index (thisEnum). The client should keep enumerating until it
//                returns NVAPI_END_ENUMERATION.
//
//                Note: Display handles can get invalidated on a modeset, so the calling applications need to 
//                renum the handles after every modeset.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: either the handle pointer is NULL or enum index too big
//                NVAPI_OK: return a valid NvDisplayHandle based on the enum index
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA device found in the system
//                NVAPI_END_ENUMERATION: no more display device to enumerate.
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_EnumNvidiaDisplayHandle(NvU32 thisEnum, NvDisplayHandle *pNvDispHandle);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_EnumNvidiaUnAttachedDisplayHandle
//
//   DESCRIPTION: Returns the handle of the NVIDIA UnAttached display specified by the enum 
//                index (thisEnum). The client should keep enumerating till it
//                return error.
//
//                Note: Display handles can get invalidated on a modeset, so the calling applications need to 
//                renum the handles after every modeset.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: either the handle pointer is NULL or enum index too big
//                NVAPI_OK: return a valid NvDisplayHandle based on the enum index
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA device found in the system
//                NVAPI_END_ENUMERATION: no more display device to enumerate.
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_EnumNvidiaUnAttachedDisplayHandle(NvU32 thisEnum, NvUnAttachedDisplayHandle *pNvUnAttachedDispHandle);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_EnumPhysicalGPUs
//
//   DESCRIPTION: Returns an array of physical GPU handles.
//
//                Each handle represents a physical GPU present in the system.
//                That GPU may be part of a SLI configuration, or not be visible to the OS directly.
//
//                At least 1 GPU must be present in the system and running an NV display driver.
//
//                The array nvGPUHandle will be filled with physical GPU handle values.  The returned
//                gpuCount determines how many entries in the array are valid.
//
//                Note: In drivers older than 105.00, all physical GPU handles get invalidated on a modeset. So the calling applications 
//                      need to renum the handles after every modeset. 
//                      With drivers 105.00 and up all physical GPU handles are constant.
//                      Physical GPU handles are constant as long as the GPUs are not physically moved and the SBIOS VGA order is unchanged.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: nvGPUHandle or pGpuCount is NULL
//                NVAPI_OK: one or more handles were returned
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_EnumPhysicalGPUs(NvPhysicalGpuHandle nvGPUHandle[NVAPI_MAX_PHYSICAL_GPUS], NvU32 *pGpuCount);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_EnumLogicalGPUs
//
//   DESCRIPTION: Returns an array of logical GPU handles.
//
//                Each handle represents one or more GPUs acting in concert as a single graphics device.
//
//                At least 1 GPU must be present in the system and running an NV display driver.
//
//                The array nvGPUHandle will be filled with logical GPU handle values.  The returned
//                gpuCount determines how many entries in the array are valid.
//
//                Note: All logical GPUs handles get invalidated on a GPU topology change, so the calling application is required to 
//                renum the logical GPU handles to get latest physical handle mapping after every GPU topology change activated 
//                by a call to NvAPI_SetGpuTopologies.
//
//                To detect if SLI rendering is enabled please use NvAPI_D3D_GetCurrentSLIState
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: nvGPUHandle or pGpuCount is NULL
//                NVAPI_OK: one or more handles were returned
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_EnumLogicalGPUs(NvLogicalGpuHandle nvGPUHandle[NVAPI_MAX_LOGICAL_GPUS], NvU32 *pGpuCount);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetPhysicalGPUsFromDisplay
//
//   DESCRIPTION: Returns an array of physical GPU handles associated with the specified display.
//
//                At least 1 GPU must be present in the system and running an NV display driver.
//
//                The array nvGPUHandle will be filled with physical GPU handle values.  The returned
//                gpuCount determines how many entries in the array are valid.
//
//                If the display corresponds to more than one physical GPU, the first GPU returned
//                is the one with the attached active output.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hNvDisp is not valid; nvGPUHandle or pGpuCount is NULL
//                NVAPI_OK: one or more handles were returned
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetPhysicalGPUsFromDisplay(NvDisplayHandle hNvDisp, NvPhysicalGpuHandle nvGPUHandle[NVAPI_MAX_PHYSICAL_GPUS], NvU32 *pGpuCount);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetPhysicalGPUFromUnAttachedDisplay
//
//   DESCRIPTION: Returns a physical GPU handle associated with the specified unattached display.
//
//                At least 1 GPU must be present in the system and running an NV display driver.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hNvUnAttachedDisp is not valid or pPhysicalGpu is NULL.
//                NVAPI_OK: one or more handles were returned
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetPhysicalGPUFromUnAttachedDisplay(NvUnAttachedDisplayHandle hNvUnAttachedDisp, NvPhysicalGpuHandle *pPhysicalGpu);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_CreateDisplayFromUnAttachedDisplay
//
//   DESCRIPTION: The unattached display handle is converted to a active attached display handle.
//
//                At least 1 GPU must be present in the system and running an NV display driver.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hNvUnAttachedDisp is not valid or pNvDisplay is NULL.
//                NVAPI_OK: one or more handles were returned
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_CreateDisplayFromUnAttachedDisplay(NvUnAttachedDisplayHandle hNvUnAttachedDisp, NvDisplayHandle *pNvDisplay);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetLogicalGPUFromDisplay
//
//   DESCRIPTION: Returns the logical GPU handle associated with the specified display.
//
//                At least 1 GPU must be present in the system and running an NV display driver.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hNvDisp is not valid; pLogicalGPU is NULL
//                NVAPI_OK: one or more handles were returned
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetLogicalGPUFromDisplay(NvDisplayHandle hNvDisp, NvLogicalGpuHandle *pLogicalGPU);
 
///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetLogicalGPUFromPhysicalGPU
//
//   DESCRIPTION: Returns the logical GPU handle associated with specified physical GPU handle.
//
//                At least 1 GPU must be present in the system and running an NV display driver.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGPU is not valid; pLogicalGPU is NULL
//                NVAPI_OK: one or more handles were returned
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetLogicalGPUFromPhysicalGPU(NvPhysicalGpuHandle hPhysicalGPU, NvLogicalGpuHandle *pLogicalGPU);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetPhysicalGPUsFromLogicalGPU
//
//   DESCRIPTION: Returns the physical GPU handles associated with the specified logical GPU handle.
//
//                At least 1 GPU must be present in the system and running an NV display driver.
//
//                The array hPhysicalGPU will be filled with physical GPU handle values.  The returned
//                gpuCount determines how many entries in the array are valid.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hLogicalGPU is not valid; hPhysicalGPU is NULL
//                NVAPI_OK: one or more handles were returned
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_LOGICAL_GPU_HANDLE: hLogicalGPU was not a logical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetPhysicalGPUsFromLogicalGPU(NvLogicalGpuHandle hLogicalGPU,NvPhysicalGpuHandle hPhysicalGPU[NVAPI_MAX_PHYSICAL_GPUS], NvU32 *pGpuCount);
   
///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetAssociatedNvidiaDisplayHandle
//
//   DESCRIPTION: Returns the handle of the NVIDIA display that is associated
//                with the display name given.  Eg: "\\DISPLAY1"
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: either argument is NULL
//                NVAPI_OK: *pNvDispHandle is now valid
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA device maps to that display name
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetAssociatedNvidiaDisplayHandle(const char *szDisplayName, NvDisplayHandle *pNvDispHandle);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetAssociatedNvidiaDisplayName
//
//   DESCRIPTION: Returns the display name given.  Eg: "\\DISPLAY1" using the NVIDIA display handle
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: either argument is NULL
//                NVAPI_OK: *pNvDispHandle is now valid
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA device maps to that display name
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetAssociatedNvidiaDisplayName(NvDisplayHandle NvDispHandle, NvAPI_ShortString szDisplayName);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetUnAttachedAssociatedDisplayName
//
//   DESCRIPTION: Returns the display name given.  Eg: "\\DISPLAY1" using the NVIDIA unattached display handle
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: either argument is NULL
//                NVAPI_OK: *pNvDispHandle is now valid
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA device maps to that display name
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetUnAttachedAssociatedDisplayName(NvUnAttachedDisplayHandle hNvUnAttachedDisp, NvAPI_ShortString szDisplayName);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_EnableHWCursor
//
//   DESCRIPTION: Enable hardware cursor support
//
//  SUPPORTED OS: Windows XP
//
// RETURN STATUS: NVAPI_ERROR or NVAPI_OK
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_EnableHWCursor(NvDisplayHandle hNvDisplay);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_DisableHWCursor
//
//   DESCRIPTION: Disable hardware cursor support
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_ERROR or NVAPI_OK
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_DisableHWCursor(NvDisplayHandle hNvDisplay);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetVBlankCounter
//
//   DESCRIPTION: get vblank counter
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_ERROR or NVAPI_OK
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetVBlankCounter(NvDisplayHandle hNvDisplay, NvU32 *pCounter);

///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME: NvAPI_SetRefreshRateOverride
//   DESCRIPTION: Override the refresh rate on the given  display/outputsMask.
//                The new refresh rate can be applied right away in this API call or deferred to happen with the
//                next OS modeset. The override is only good for one modeset (doesn't matter it's deferred or immediate).
//
//  SUPPORTED OS: Windows XP
//               
//
//         INPUT: hNvDisplay - the NVIDIA display handle. It can be NVAPI_DEFAULT_HANDLE or a handle
//                             enumerated from NvAPI_EnumNVidiaDisplayHandle().
//                
//                outputsMask - a set of bits that identify all target outputs which are associated with the NVIDIA 
//                              display handle to apply the refresh rate override. Note when SLI is enabled,  the
//                              outputsMask only applies to the GPU that is driving the display output.
//
//                refreshRate - the override value. "0.0" means cancel the override.
//                              
//
//                bSetDeferred - "0": apply the refresh rate override immediately in this API call.
//                               "1":  apply refresh rate at the next OS modeset.
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hNvDisplay or outputsMask is invalid
//                NVAPI_OK: the refresh rate override is correct set
//                NVAPI_ERROR: the operation failed
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_SetRefreshRateOverride(NvDisplayHandle hNvDisplay, NvU32 outputsMask, float refreshRate, NvU32 bSetDeferred);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetAssociatedDisplayOutputId
//
//   DESCRIPTION: Gets the active outputId associated with the display handle.
//
//  SUPPORTED OS: Windows XP and higher
//
//    PARAMETERS: hNvDisplay(IN) - NVIDIA Display selection. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
//                outputId(OUT)  - The active display output id associated with the selected display handle hNvDisplay.
//                                 The outputid will have only one bit set. In case of clone or span this  will indicate the display
//                                 outputId of the primary display that the GPU is driving.
// RETURN STATUS: NVAPI_OK: call successful.
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found.
//                NVAPI_EXPECTED_DISPLAY_HANDLE: hNvDisplay is not a valid display handle.
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetAssociatedDisplayOutputId(NvDisplayHandle hNvDisplay, NvU32 *pOutputId);

///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME:   NvAPI_GetDisplayPortInfo
//
// DESCRIPTION:     This API returns the current DP related into on the specified device(monitor)
//
//  SUPPORTED OS: Windows XP and higher
//
// PARAMETERS:      hNvDisplay(IN) - NVIDIA Display selection. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
//                  outputId(IN)   - The display output id. If it's "0" then the default outputId from NvAPI_GetAssociatedDisplayOutputId() will be used.
//                  pInfo(OUT)     - The display port info
//
// RETURN STATUS: 
//                  NVAPI_OK - completed request
//                  NVAPI_ERROR - miscellaneous error occurred
//                  NVAPI_INVALID_ARGUMENT: Invalid input parameter.
//
///////////////////////////////////////////////////////////////////////////////
typedef enum
{
    NV_DP_1_62GBPS            = 6,
    NV_DP_2_70GBPS            = 0xA,
} NV_DP_LINK_RATE;

typedef enum
{
    NV_DP_1_LANE              = 1,
    NV_DP_2_LANE              = 2,
    NV_DP_4_LANE              = 4,
} NV_DP_LANE_COUNT;

typedef enum
{
    NV_DP_COLOR_FORMAT_RGB     = 0,
    NV_DP_COLOR_FORMAT_YCbCr422,
    NV_DP_COLOR_FORMAT_YCbCr444,
} NV_DP_COLOR_FORMAT;

typedef enum
{
    NV_DP_COLORIMETRY_RGB = 0,
    NV_DP_COLORIMETRY_YCbCr_ITU601,
    NV_DP_COLORIMETRY_YCbCr_ITU709,
} NV_DP_COLORIMETRY;

typedef enum
{
    NV_DP_DYNAMIC_RANGE_VESA  = 0,
    NV_DP_DYNAMIC_RANGE_CEA,
} NV_DP_DYNAMIC_RANGE;

typedef enum
{
    NV_DP_BPC_DEFAULT         = 0,
    NV_DP_BPC_6,
    NV_DP_BPC_8,
    NV_DP_BPC_10,
    NV_DP_BPC_12,
    NV_DP_BPC_16,
} NV_DP_BPC;

typedef struct
{
    NvU32               version;                     // structure version
    NvU32               dpcd_ver;                    // the DPCD version of the monitor
    NV_DP_LINK_RATE     maxLinkRate;                 // the max supported link rate
    NV_DP_LANE_COUNT    maxLaneCount;                // the max supported lane count
    NV_DP_LINK_RATE     curLinkRate;                 // the current link rate
    NV_DP_LANE_COUNT    curLaneCount;                // the current lane count
    NV_DP_COLOR_FORMAT  colorFormat;                 // the current color format
    NV_DP_DYNAMIC_RANGE dynamicRange;                // the dynamic range
    NV_DP_COLORIMETRY   colorimetry;                 // ignored in RGB space
    NV_DP_BPC           bpc;                         // the current bit-per-component;
    NvU32               isDp                   : 1;  // if the monitor is driven by display port 
    NvU32               isInternalDp           : 1;  // if the monitor is driven by NV Dp transmitter
    NvU32               isColorCtrlSupported   : 1;  // if the color format change is supported
    NvU32               is6BPCSupported        : 1;  // if 6 bpc is supported
    NvU32               is8BPCSupported        : 1;  // if 8 bpc is supported    
    NvU32               is10BPCSupported       : 1;  // if 10 bpc is supported
    NvU32               is12BPCSupported       : 1;  // if 12 bpc is supported        
    NvU32               is16BPCSupported       : 1;  // if 16 bpc is supported
 } NV_DISPLAY_PORT_INFO; 

#define NV_DISPLAY_PORT_INFO_VER   MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_INFO,1)

NVAPI_INTERFACE NvAPI_GetDisplayPortInfo(NvDisplayHandle hNvDisplay, NvU32 outputId, NV_DISPLAY_PORT_INFO *pInfo);

///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME:   NvAPI_SetDisplayPort
//
// DESCRIPTION:     This API is used to setup DP related configurations.
//
//  SUPPORTED OS: Windows XP and higher
//
// PARAMETERS:      hNvDisplay(IN) - NVIDIA display handle. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
//                  outputId(IN)   - This display output ID, when it's "0" it means the default outputId generated from the return of NvAPI_GetAssociatedDisplayOutputId().
//                  pCfg(IN)       - The display port config structure. If pCfg is NULL, it means to use the driver's default value to setup.
//
// RETURN STATUS: 
//                  NVAPI_OK - completed request
//                  NVAPI_ERROR - miscellaneous error occurred
//                  NVAPI_INVALID_ARGUMENT: Invalid input parameter.
///////////////////////////////////////////////////////////////////////////////
typedef struct
{
    NvU32               version;                     // structure version - 2 is latest
    NV_DP_LINK_RATE     linkRate;                    // the link rate
    NV_DP_LANE_COUNT    laneCount;                   // the lane count
    NV_DP_COLOR_FORMAT  colorFormat;                 // the color format to set
    NV_DP_DYNAMIC_RANGE dynamicRange;                // the dynamic range
    NV_DP_COLORIMETRY   colorimetry;                 // ignored in RGB space
    NV_DP_BPC           bpc;                         // the current bit-per-component;
    NvU32               isHPD               : 1;     // if CPL is making this call due to HPD
    NvU32               isSetDeferred       : 1;     // requires an OS modeset to finalize the setup if set
    NvU32               isChromaLpfOff      : 1;     // force the chroma low_pass_filter to be off
    NvU32               isDitherOff         : 1;     // force to turn off dither
} NV_DISPLAY_PORT_CONFIG;

#define NV_DISPLAY_PORT_CONFIG_VER   MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_CONFIG,2)
#define NV_DISPLAY_PORT_CONFIG_VER_1 MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_CONFIG,1)
#define NV_DISPLAY_PORT_CONFIG_VER_2 MAKE_NVAPI_VERSION(NV_DISPLAY_PORT_CONFIG,2)

NVAPI_INTERFACE NvAPI_SetDisplayPort(NvDisplayHandle hNvDisplay, NvU32 outputId, NV_DISPLAY_PORT_CONFIG *pCfg);

///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME:   NvAPI_GetHDMISupportInfo
//
// DESCRIPTION:     This API returns the current infoframe data on the specified device(monitor)
//
//  SUPPORTED OS: Windows Vista and higher
//
// PARAMETERS:      hNvDisplay(IN) - NVIDIA Display selection. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
//                  outputId(IN)   - The display output id. If it's "0" then the default outputId from NvAPI_GetAssociatedDisplayOutputId() will be used.
//                  pInfo(OUT)     - The monitor and GPU's HDMI support info
//
// RETURN STATUS: 
//                  NVAPI_OK - completed request
//                  NVAPI_ERROR - miscellaneous error occurred
//                  NVAPI_INVALID_ARGUMENT: Invalid input parameter.
//
///////////////////////////////////////////////////////////////////////////////
typedef struct
{
    NvU32      version;                     // structure version
    NvU32      isGpuHDMICapable       : 1;  // if the GPU can handle HDMI
    NvU32      isMonUnderscanCapable  : 1;  // if the monitor supports underscan
    NvU32      isMonBasicAudioCapable : 1;  // if the monitor supports basic audio
    NvU32      isMonYCbCr444Capable   : 1;  // if YCbCr 4:4:4 is supported
    NvU32      isMonYCbCr422Capable   : 1;  // if YCbCr 4:2:2 is supported
    NvU32      isMonxvYCC601Capable   : 1;  // if xvYCC 601 is supported
    NvU32      isMonxvYCC709Capable   : 1;  // if xvYCC 709 is supported
    NvU32      isMonHDMI              : 1;  // if the monitor is HDMI (with IEEE's HDMI registry ID)
    NvU32      EDID861ExtRev;               // the revision number of the EDID 861 extension
 } NV_HDMI_SUPPORT_INFO; 

#define NV_HDMI_SUPPORT_INFO_VER  MAKE_NVAPI_VERSION(NV_HDMI_SUPPORT_INFO,1)

NVAPI_INTERFACE NvAPI_GetHDMISupportInfo(NvDisplayHandle hNvDisplay, NvU32 outputId, NV_HDMI_SUPPORT_INFO *pInfo);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetAllOutputs
//
//   DESCRIPTION: Returns set of all GPU-output identifiers as a bitmask.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pOutputsMask is NULL
//                NVAPI_OK: *pOutputsMask contains a set of GPU-output identifiers
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetAllOutputs(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pOutputsMask);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetConnectedOutputs
//
//   DESCRIPTION: Same as NvAPI_GPU_GetAllOutputs but returns only the set of GPU-output 
//                identifiers that are connected to display devices.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pOutputsMask is NULL
//                NVAPI_OK: *pOutputsMask contains a set of GPU-output identifiers
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetConnectedOutputs(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetConnectedSLIOutputs
//
//   DESCRIPTION: Same as NvAPI_GPU_GetConnectedOutputs but returns only the set of GPU-output 
//                identifiers that can be selected in an SLI configuration. With SLI disabled
//                this function matches NvAPI_GPU_GetConnectedOutputs
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pOutputsMask is NULL
//                NVAPI_OK: *pOutputsMask contains a set of GPU-output identifiers
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetConnectedSLIOutputs(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);


///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetConnectedOutputsWithLidState
//
//   DESCRIPTION: Similar to NvAPI_GPU_GetConnectedOutputs this API returns the connected display identifiers that are connected 
//                as a output mask but unlike NvAPI_GPU_GetConnectedOutputs this API "always" reflects the Lid State in the output mask.
//                Thus if you expect the LID close state to be available in the connection mask use this API.
//                If LID is closed then this API will remove the LID panel from the connected display identifiers. 
//                If LID is open then this API will reflect the LID panel in the connected display identifiers. 
//                Note:This API should be used on laptop systems and on systems where LID state is required in the connection output mask. 
//                     On desktop systems the returned identifiers will match NvAPI_GPU_GetConnectedOutputs.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pOutputsMask is NULL
//                NVAPI_OK: *pOutputsMask contains a set of GPU-output identifiers
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetConnectedOutputsWithLidState(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetConnectedSLIOutputsWithLidState
//
//   DESCRIPTION: Same as NvAPI_GPU_GetConnectedOutputsWithLidState but returns only the set of GPU-output 
//                identifiers that can be selected in an SLI configuration. With SLI disabled
//                this function matches NvAPI_GPU_GetConnectedOutputsWithLidState
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pOutputsMask is NULL
//                NVAPI_OK: *pOutputsMask contains a set of GPU-output identifiers
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetConnectedSLIOutputsWithLidState(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetSystemType
//
//   DESCRIPTION: Returns information to identify if the GPU type is for a laptop system or a desktop system.
//
//  SUPPORTED OS: Windows XP and higher
//                
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pOutputsMask is NULL
//                NVAPI_OK: *pSystemType contains the GPU system type
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
typedef enum
{
    NV_SYSTEM_TYPE_UNKNOWN = 0,
    NV_SYSTEM_TYPE_LAPTOP  = 1,
    NV_SYSTEM_TYPE_DESKTOP = 2,

} NV_SYSTEM_TYPE;

NVAPI_INTERFACE NvAPI_GPU_GetSystemType(NvPhysicalGpuHandle hPhysicalGpu, NV_SYSTEM_TYPE *pSystemType);


///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetActiveOutputs
//
//   DESCRIPTION: Same as NvAPI_GPU_GetAllOutputs but returns only the set of GPU-output 
//                identifiers that are actively driving display devices.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pOutputsMask is NULL
//                NVAPI_OK: *pOutputsMask contains a set of GPU-output identifiers
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetActiveOutputs(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pOutputsMask);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetEDID
//
//   DESCRIPTION: Returns the EDID data for the specified GPU handle and connection bit mask.
//                displayOutputId should have exactly 1 bit set to indicate a single display.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: pEDID is NULL; displayOutputId has 0 or > 1 bits set.
//                NVAPI_OK: *pEDID contains valid data.
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found.
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle.
//                NVAPI_DATA_NOT_FOUND: requested display does not contain an EDID
//
///////////////////////////////////////////////////////////////////////////////
#define NV_EDID_V1_DATA_SIZE   256
#define NV_EDID_DATA_SIZE      NV_EDID_V1_DATA_SIZE

typedef struct
{
    NvU32   version;        //structure version
    NvU8    EDID_Data[NV_EDID_DATA_SIZE];
    NvU32   sizeofEDID;
} NV_EDID;

#define NV_EDID_VER         MAKE_NVAPI_VERSION(NV_EDID,2)

NVAPI_INTERFACE NvAPI_GPU_GetEDID(NvPhysicalGpuHandle hPhysicalGpu, NvU32 displayOutputId, NV_EDID *pEDID);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetOutputType
//
//   DESCRIPTION: Give a physical GPU handle and a single outputId (exactly 1 bit set), this API
//                returns the output type.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu, outputId or pOutputsMask is NULL; or outputId has > 1 bit set
//                NVAPI_OK: *pOutputType contains a NvGpuOutputType value
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
typedef enum _NV_GPU_OUTPUT_TYPE
{
    NVAPI_GPU_OUTPUT_UNKNOWN  = 0,
    NVAPI_GPU_OUTPUT_CRT      = 1,     // CRT display device
    NVAPI_GPU_OUTPUT_DFP      = 2,     // Digital Flat Panel display device
    NVAPI_GPU_OUTPUT_TV       = 3,     // TV display device
} NV_GPU_OUTPUT_TYPE;

NVAPI_INTERFACE NvAPI_GPU_GetOutputType(NvPhysicalGpuHandle hPhysicalGpu, NvU32 outputId, NV_GPU_OUTPUT_TYPE *pOutputType);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_ValidateOutputCombination
//
//   DESCRIPTION: This call is used to determine if a set of GPU outputs can be active 
//                simultaneously.  While a GPU may have <n> outputs, they can not typically
//                all be active at the same time due to internal resource sharing.
//
//                Given a physical GPU handle and a mask of candidate outputs, this call
//                will return NVAPI_OK if all of the specified outputs can be driven
//                simultaneously.  It will return NVAPI_INVALID_COMBINATION if they cannot.
//                
//                Use NvAPI_GPU_GetAllOutputs() to determine which outputs are candidates.
//
//  SUPPORTED OS: Windows XP and higher
//
// RETURN STATUS: NVAPI_OK: combination of outputs in outputsMask are valid (can be active simultaneously)
//                NVAPI_INVALID_COMBINATION: combination of outputs in outputsMask are NOT valid
//                NVAPI_INVALID_ARGUMENT: hPhysicalGpu or outputsMask does not have at least 2 bits set
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_ValidateOutputCombination(NvPhysicalGpuHandle hPhysicalGpu, NvU32 outputsMask);

typedef enum _NV_GPU_CONNECTOR_TYPE
{
    NVAPI_GPU_CONNECTOR_VGA_15_PIN                      = 0x00000000,
    NVAPI_GPU_CONNECTOR_TV_COMPOSITE                    = 0x00000010,
    NVAPI_GPU_CONNECTOR_TV_SVIDEO                       = 0x00000011,
    NVAPI_GPU_CONNECTOR_TV_HDTV_COMPONENT               = 0x00000013,
    NVAPI_GPU_CONNECTOR_TV_SCART                        = 0x00000014,
    NVAPI_GPU_CONNECTOR_TV_COMPOSITE_SCART_ON_EIAJ4120  = 0x00000016,
    NVAPI_GPU_CONNECTOR_TV_HDTV_EIAJ4120                = 0x00000017,
    NVAPI_GPU_CONNECTOR_PC_POD_HDTV_YPRPB               = 0x00000018,
    NVAPI_GPU_CONNECTOR_PC_POD_SVIDEO                   = 0x00000019,
    NVAPI_GPU_CONNECTOR_PC_POD_COMPOSITE                = 0x0000001A,
    NVAPI_GPU_CONNECTOR_DVI_I_TV_SVIDEO                 = 0x00000020,
    NVAPI_GPU_CONNECTOR_DVI_I_TV_COMPOSITE              = 0x00000021,
    NVAPI_GPU_CONNECTOR_DVI_I                           = 0x00000030,
    NVAPI_GPU_CONNECTOR_DVI_D                           = 0x00000031,
    NVAPI_GPU_CONNECTOR_ADC                             = 0x00000032,
    NVAPI_GPU_CONNECTOR_LFH_DVI_I_1                     = 0x00000038,
    NVAPI_GPU_CONNECTOR_LFH_DVI_I_2                     = 0x00000039,
    NVAPI_GPU_CONNECTOR_SPWG                            = 0x00000040,
    NVAPI_GPU_CONNECTOR_OEM                             = 0x00000041,
    NVAPI_GPU_CONNECTOR_DISPLAYPORT_EXTERNAL            = 0x00000046,
    NVAPI_GPU_CONNECTOR_DISPLAYPORT_INTERNAL            = 0x00000047,
    NVAPI_GPU_CONNECTOR_HDMI_A                          = 0x00000061,
    NVAPI_GPU_CONNECTOR_UNKNOWN                         = 0xFFFFFFFF,
} NV_GPU_CONNECTOR_TYPE;

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetFullName
//
//   DESCRIPTION: Retrieves the full GPU name as an ascii string.  Eg: "Quadro FX 1400"
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_ERROR or NVAPI_OK
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetFullName(NvPhysicalGpuHandle hPhysicalGpu, NvAPI_ShortString szName);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetPCIIdentifiers
//
//   DESCRIPTION: Returns the PCI identifiers associated with this GPU.
//                  DeviceId - the internal PCI device identifier for the GPU.
//                  SubSystemId - the internal PCI subsystem identifier for the GPU.
//                  RevisionId - the internal PCI device-specific revision identifier for the GPU.
//                  ExtDeviceId - the external PCI device identifier for the GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or an argument is NULL
//                NVAPI_OK: arguments are populated with PCI identifiers
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetPCIIdentifiers(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pDeviceId,NvU32 *pSubSystemId,NvU32 *pRevisionId,NvU32 *pExtDeviceId);
    
typedef enum _NV_GPU_TYPE
{
    NV_SYSTEM_TYPE_GPU_UNKNOWN     = 0, 
    NV_SYSTEM_TYPE_IGPU            = 1, //integrated 
    NV_SYSTEM_TYPE_DGPU            = 2, //discrete 
} NV_GPU_TYPE; 

/////////////////////////////////////////////////////////////////////////////// 
// 
// FUNCTION NAME: NvAPI_GPU_GetGPUType 
// 
// DESCRIPTION: Returns information to identify the GPU type 
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
// 
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu 
// NVAPI_OK: *pGpuType contains the GPU type 
// NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found 
// NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle 
// 
///////////////////////////////////////////////////////////////////////////////     
NVAPI_INTERFACE NvAPI_GPU_GetGPUType(NvPhysicalGpuHandle hPhysicalGpu, NV_GPU_TYPE *pGpuType);

typedef enum _NV_GPU_BUS_TYPE
{
    NVAPI_GPU_BUS_TYPE_UNDEFINED    = 0,
    NVAPI_GPU_BUS_TYPE_PCI          = 1,
    NVAPI_GPU_BUS_TYPE_AGP          = 2,
    NVAPI_GPU_BUS_TYPE_PCI_EXPRESS  = 3,
    NVAPI_GPU_BUS_TYPE_FPCI         = 4,
} NV_GPU_BUS_TYPE;

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetBusType
//
//   DESCRIPTION: Returns the type of bus associated with this GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pBusType is NULL
//                NVAPI_OK: *pBusType contains bus identifier
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetBusType(NvPhysicalGpuHandle hPhysicalGpu,NV_GPU_BUS_TYPE *pBusType);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetBusId
//
//   DESCRIPTION: Returns the ID of bus associated with this GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pBusId is NULL
//                NVAPI_OK: *pBusId contains bus id
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetBusId(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pBusId);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetBusSlotId
//
//   DESCRIPTION: Returns the ID of bus-slot associated with this GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pBusSlotId is NULL
//                NVAPI_OK: *pBusSlotId contains bus-slot id
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetBusSlotId(NvPhysicalGpuHandle hPhysicalGpu, NvU32 *pBusSlotId);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetIRQ
//
//   DESCRIPTION: Returns the interrupt number associated with this GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pIRQ is NULL
//                NVAPI_OK: *pIRQ contains interrupt number
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetIRQ(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pIRQ);
    
///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetVbiosRevision
//
//   DESCRIPTION: Returns the revision of the video bios associated with this GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pBiosRevision is NULL
//                NVAPI_OK: *pBiosRevision contains revision number
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetVbiosRevision(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pBiosRevision);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetVbiosOEMRevision
//
//   DESCRIPTION: Returns the OEM revision of the video bios associated with this GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu or pBiosRevision is NULL
//                NVAPI_OK: *pBiosRevision contains revision number
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetVbiosOEMRevision(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pBiosRevision);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetVbiosVersionString
//
//   DESCRIPTION: Returns the full bios version string in the form of xx.xx.xx.xx.yy where
//                the xx numbers come from NvAPI_GPU_GetVbiosRevision and yy comes from 
//                NvAPI_GPU_GetVbiosOEMRevision.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: hPhysicalGpu is NULL
//                NVAPI_OK: szBiosRevision contains version string
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetVbiosVersionString(NvPhysicalGpuHandle hPhysicalGpu,NvAPI_ShortString szBiosRevision);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetAGPAperture
//
//   DESCRIPTION: Returns AGP aperture in megabytes
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: pSize is NULL
//                NVAPI_OK: call successful
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetAGPAperture(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pSize);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetCurrentAGPRate
//
//   DESCRIPTION: Returns the current AGP Rate (1 = 1x, 2=2x etc, 0 = AGP not present)
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: pRate is NULL
//                NVAPI_OK: call successful
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetCurrentAGPRate(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pRate);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetCurrentPCIEDownstreamWidth
//
//   DESCRIPTION: Returns the number of PCIE lanes being used for the PCIE interface 
//                downstream from the GPU.
//
//                On systems that do not support PCIE, the maxspeed for the root link
//                will be zero.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: pWidth is NULL
//                NVAPI_OK: call successful
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetCurrentPCIEDownstreamWidth(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pWidth);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetPhysicalFrameBufferSize
//
//   DESCRIPTION: Returns the physical size of framebuffer in Kb.  This does NOT include any
//                system RAM that may be dedicated for use by the GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: pSize is NULL
//                NVAPI_OK: call successful
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetPhysicalFrameBufferSize(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pSize);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GPU_GetVirtualFrameBufferSize
//
//   DESCRIPTION: Returns the virtual size of framebuffer in Kb.  This includes the physical RAM plus any
//                system RAM that has been dedicated for use by the GPU.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: pSize is NULL
//                NVAPI_OK: call successful
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND: no NVIDIA GPU driving a display was found
//                NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE: hPhysicalGpu was not a physical GPU handle
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetVirtualFrameBufferSize(NvPhysicalGpuHandle hPhysicalGpu,NvU32 *pSize);

///////////////////////////////////////////////////////////////////////////////////
//  Thermal API
//  Provides ability to get temperature levels from the various thermal sensors associated with the GPU

#define NVAPI_MAX_THERMAL_SENSORS_PER_GPU 3

typedef enum 
{
    NVAPI_THERMAL_TARGET_NONE          = 0,
    NVAPI_THERMAL_TARGET_GPU           = 1,
    NVAPI_THERMAL_TARGET_MEMORY        = 2,
    NVAPI_THERMAL_TARGET_POWER_SUPPLY  = 4,
    NVAPI_THERMAL_TARGET_BOARD         = 8,
    NVAPI_THERMAL_TARGET_ALL           = 15,
    NVAPI_THERMAL_TARGET_UNKNOWN       = -1,
} NV_THERMAL_TARGET;

typedef enum
{
    NVAPI_THERMAL_CONTROLLER_NONE = 0,
    NVAPI_THERMAL_CONTROLLER_GPU_INTERNAL,  
    NVAPI_THERMAL_CONTROLLER_ADM1032,
    NVAPI_THERMAL_CONTROLLER_MAX6649,       
    NVAPI_THERMAL_CONTROLLER_MAX1617,      
    NVAPI_THERMAL_CONTROLLER_LM99,      
    NVAPI_THERMAL_CONTROLLER_LM89,         
    NVAPI_THERMAL_CONTROLLER_LM64,         
    NVAPI_THERMAL_CONTROLLER_ADT7473,
    NVAPI_THERMAL_CONTROLLER_SBMAX6649,
    NVAPI_THERMAL_CONTROLLER_VBIOSEVT,  
    NVAPI_THERMAL_CONTROLLER_OS,    
    NVAPI_THERMAL_CONTROLLER_UNKNOWN = -1,
} NV_THERMAL_CONTROLLER;

typedef struct
{
    NvU32   version;                //structure version 
    NvU32   count;                  //number of associated thermal sensors with the selected GPU
    struct 
    {
        NV_THERMAL_CONTROLLER       controller;         //internal, ADM1032, MAX6649...
        NvU32                       defaultMinTemp;     //the min default temperature value of the thermal sensor in degrees centigrade 
        NvU32                       defaultMaxTemp;    //the max default temperature value of the thermal sensor in degrees centigrade 
        NvU32                       currentTemp;       //the current temperature value of the thermal sensor in degrees centigrade 
        NV_THERMAL_TARGET           target;             //thermal senor targeted @ GPU, memory, chipset, powersupply, canoas...
    } sensor[NVAPI_MAX_THERMAL_SENSORS_PER_GPU];

} NV_GPU_THERMAL_SETTINGS;

#define NV_GPU_THERMAL_SETTINGS_VER  MAKE_NVAPI_VERSION(NV_GPU_THERMAL_SETTINGS,1)

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME:   NvAPI_GPU_GetThermalSettings
//
// DESCRIPTION:     Retrieves the thermal information of all thermal sensors or specific thermal sensor associated with the selected GPU.
//                  Thermal sensors are indexed 0 to NVAPI_MAX_THERMAL_SENSORS_PER_GPU-1.
//                  To retrieve specific thermal sensor info set the sensorIndex to the required thermal sensor index. 
//                  To retrieve info for all sensors set sensorIndex to NVAPI_THERMAL_TARGET_ALL. 
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// PARAMETERS :     hPhysicalGPU(IN) - GPU selection.
//                  sensorIndex(IN)  - Explicit thermal sensor index selection. 
//                  pThermalSettings(OUT) - Array of thermal settings.
//
// RETURN STATUS: 
//    NVAPI_OK - completed request
//    NVAPI_ERROR - miscellaneous error occurred
//    NVAPI_INVALID_ARGUMENT - pThermalInfo is NULL
//    NVAPI_HANDLE_INVALIDATED - handle passed has been invalidated (see user guide)
//    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE - handle passed is not a physical GPU handle
//    NVAPI_INCOMPATIBLE_STRUCT_VERSION - the version of the INFO struct is not supported
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GPU_GetThermalSettings(NvPhysicalGpuHandle hPhysicalGpu, NvU32 sensorIndex, NV_GPU_THERMAL_SETTINGS *pThermalSettings);

////////////////////////////////////////////////////////////////////////////////
//NvAPI_TVOutput Information

typedef enum _NV_DISPLAY_TV_FORMAT
{
    NV_DISPLAY_TV_FORMAT_NONE         = 0,
    NV_DISPLAY_TV_FORMAT_SD_NTSCM     = 0x00000001,
    NV_DISPLAY_TV_FORMAT_SD_NTSCJ     = 0x00000002,
    NV_DISPLAY_TV_FORMAT_SD_PALM      = 0x00000004,
    NV_DISPLAY_TV_FORMAT_SD_PALBDGH   = 0x00000008,
    NV_DISPLAY_TV_FORMAT_SD_PALN      = 0x00000010,
    NV_DISPLAY_TV_FORMAT_SD_PALNC     = 0x00000020,
    NV_DISPLAY_TV_FORMAT_SD_576i      = 0x00000100,
    NV_DISPLAY_TV_FORMAT_SD_480i      = 0x00000200,
    NV_DISPLAY_TV_FORMAT_ED_480p      = 0x00000400,
    NV_DISPLAY_TV_FORMAT_ED_576p      = 0x00000800,
    NV_DISPLAY_TV_FORMAT_HD_720p      = 0x00001000,
    NV_DISPLAY_TV_FORMAT_HD_1080i     = 0x00002000,
    NV_DISPLAY_TV_FORMAT_HD_1080p     = 0x00004000,
    NV_DISPLAY_TV_FORMAT_HD_720p50    = 0x00008000,
    NV_DISPLAY_TV_FORMAT_HD_1080p24   = 0x00010000,
    NV_DISPLAY_TV_FORMAT_HD_1080i50   = 0x00020000,
    NV_DISPLAY_TV_FORMAT_HD_1080p50   = 0x00040000,

} NV_DISPLAY_TV_FORMAT;

///////////////////////////////////////////////////////////////////////////////////
//  I2C API
//  Provides ability to read or write data using I2C protocol.
//  These APIs allow I2C access only to DDC monitors

#define NVAPI_MAX_SIZEOF_I2C_DATA_BUFFER 256
#define NVAPI_NO_PORTID_FOUND 5
#define NVAPI_DISPLAY_DEVICE_MASK_MAX 24

typedef struct 
{
    NvU32                   version;        //structure version 
    NvU32                   displayMask;    //the Display Mask of the concerned display
    NvU8                    bIsDDCPort;     //Flag indicating DDC port or a communication port
    NvU8                    i2cDevAddress;  //the I2C target device address
    NvU8*                   pbI2cRegAddress;//the I2C target register address  
    NvU32                   regAddrSize;    //the size in bytes of target register address  
    NvU8*                   pbData;         //The buffer of data which is to be read/written
    NvU32                   cbSize;         //The size of Data buffer to be read.
    NvU32                   i2cSpeed;       //The speed at which the transaction is be made(between 28kbps to 40kbps)
} NV_I2C_INFO;

#define NV_I2C_INFO_VER  MAKE_NVAPI_VERSION(NV_I2C_INFO,1)
/***********************************************************************************/

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME:  NvAPI_I2CRead
//
// DESCRIPTION:    Read data buffer from I2C port
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// PARAMETERS:     hPhysicalGPU(IN) - GPU selection.
//                 NV_I2C_INFO *pI2cInfo -The I2c data input structure
//
// RETURN STATUS: 
//    NVAPI_OK - completed request
//    NVAPI_ERROR - miscellaneous error occurred
//    NVAPI_HANDLE_INVALIDATED - handle passed has been invalidated (see user guide)
//    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE - handle passed is not a physical GPU handle
//    NVAPI_INCOMPATIBLE_STRUCT_VERSION - structure version is not supported
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_I2CRead(NvPhysicalGpuHandle hPhysicalGpu, NV_I2C_INFO *pI2cInfo);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME:  NvAPI_I2CWrite
//
// DESCRIPTION:    Writes data buffer to I2C port
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// PARAMETERS:     hPhysicalGPU(IN) - GPU selection.
//                 NV_I2C_INFO *pI2cInfo -The I2c data input structure
//
// RETURN STATUS: 
//    NVAPI_OK - completed request
//    NVAPI_ERROR - miscellaneous error occurred
//    NVAPI_HANDLE_INVALIDATED - handle passed has been invalidated (see user guide)
//    NVAPI_EXPECTED_PHYSICAL_GPU_HANDLE - handle passed is not a physical GPU handle
//    NVAPI_INCOMPATIBLE_STRUCT_VERSION - structure version is not supported
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_I2CWrite(NvPhysicalGpuHandle hPhysicalGpu, NV_I2C_INFO *pI2cInfo);


typedef struct
{
    NvU32               version;        //structure version
    NvU32               vendorId;       //vendorId
    NvU32               deviceId;       //deviceId
    NvAPI_ShortString   szVendorName;   //vendor Name
    NvAPI_ShortString   szChipsetName;  //device Name
    NvU32               flags;          //Chipset info flags - obsolete
    NvU32               subSysVendorId;     //subsystem vendorId
    NvU32               subSysDeviceId;     //subsystem deviceId
    NvAPI_ShortString   szSubSysVendorName; //subsystem vendor Name
} NV_CHIPSET_INFO;

#define NV_CHIPSET_INFO_VER     MAKE_NVAPI_VERSION(NV_CHIPSET_INFO,3)

typedef enum
{
    NV_CHIPSET_INFO_HYBRID          = 0x00000001,
} NV_CHIPSET_INFO_FLAGS;

typedef struct
{
    NvU32               version;        //structure version
    NvU32               vendorId;       //vendorId
    NvU32               deviceId;       //deviceId
    NvAPI_ShortString   szVendorName;   //vendor Name
    NvAPI_ShortString   szChipsetName;  //device Name
    NvU32               flags;          //Chipset info flags
} NV_CHIPSET_INFO_v2;

#define NV_CHIPSET_INFO_VER_2   MAKE_NVAPI_VERSION(NV_CHIPSET_INFO_v2,2)

typedef struct
{
    NvU32               version;        //structure version
    NvU32               vendorId;       //vendorId
    NvU32               deviceId;       //deviceId
    NvAPI_ShortString   szVendorName;   //vendor Name
    NvAPI_ShortString   szChipsetName;  //device Name
} NV_CHIPSET_INFO_v1;

#define NV_CHIPSET_INFO_VER_1  MAKE_NVAPI_VERSION(NV_CHIPSET_INFO_v1,1)

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_SYS_GetChipSetInfo
//
//   DESCRIPTION: Returns information about the System's ChipSet
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_INVALID_ARGUMENT: pChipSetInfo is NULL
//                NVAPI_OK: *pChipSetInfo is now set
//                NVAPI_INCOMPATIBLE_STRUCT_VERSION - NV_CHIPSET_INFO version not compatible with driver
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_SYS_GetChipSetInfo(NV_CHIPSET_INFO *pChipSetInfo);

typedef struct 
{
    NvU32 version;    // Structure version, constructed from macro below
    NvU32 currentLidState;
    NvU32 currentDockState;
    NvU32 currentLidPolicy;
    NvU32 currentDockPolicy;
    NvU32 forcedLidMechanismPresent;
    NvU32 forcedDockMechanismPresent;
}NV_LID_DOCK_PARAMS;

#define NV_LID_DOCK_PARAMS_VER  MAKE_NVAPI_VERSION(NV_LID_DOCK_PARAMS,1)

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_GetLidDockInfo
//
// DESCRIPTION: Returns current lid and dock information.
//
//  SUPPORTED OS: Mac OS X, Windows XP and higher
//
// RETURN STATUS: NVAPI_OK: now *pLidAndDock contains the returned lid and dock information.  
//                NVAPI_ERROR:If any way call is not success.
//                NVAPI_NOT_SUPPORTED:If any way call is not success.
//                NVAPI_HANDLE_INVALIDATED:If nvapi escape result handle is invalid.
//                NVAPI_API_NOT_INTIALIZED:If NVAPI is not initialized. 
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_SYS_GetLidAndDockInfo(NV_LID_DOCK_PARAMS *pLidAndDock);


///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_OGL_ExpertModeSet[Get]
//
//   DESCRIPTION: Configure OpenGL Expert Mode, an API usage feedback and
//                advice reporting mechanism. The effects of this call are
//                applied only to the current context, and are reset to the
//                defaults when the context is destroyed.
//
//                Note: This feature is valid at runtime only when GLExpert
//                      functionality has been built into the OpenGL driver
//                      installed on the system. All Windows Vista OpenGL
//                      drivers provided by NVIDIA have this instrumentation
//                      included by default. Windows XP, however, requires a
//                      special display driver available with the NVIDIA
//                      PerfSDK found at developer.nvidia.com.
//
//                Note: These functions are valid only for the current OpenGL
//                      context. Calling these functions prior to creating a
//                      context and calling MakeCurrent with it will result
//                      in errors and undefined behavior.
//
//    PARAMETERS: expertDetailMask  Mask made up of NVAPI_OGLEXPERT_DETAIL bits,
//                                  this parameter specifies the detail level in
//                                  the feedback stream.
//
//                expertReportMask  Mask made up of NVAPI_OGLEXPERT_REPORT bits,
//                                  this parameter specifies the areas of
//                                  functional interest.
//
//                expertOutputMask  Mask made up of NVAPI_OGLEXPERT_OUTPUT bits,
//                                  this parameter specifies the feedback output
//                                  location.
//
//                expertCallback    Used in conjunction with OUTPUT_TO_CALLBACK,
//                                  this is a simple callback function the user
//                                  may use to obtain the feedback stream. The
//                                  function will be called once per fully
//                                  qualified feedback stream entry.
//
// RETURN STATUS: NVAPI_API_NOT_INTIALIZED         : NVAPI not initialized
//                NVAPI_NVIDIA_DEVICE_NOT_FOUND    : no NVIDIA GPU found
//                NVAPI_OPENGL_CONTEXT_NOT_CURRENT : no NVIDIA OpenGL context
//                                                   which supports GLExpert
//                                                   has been made current
//                NVAPI_ERROR : OpenGL driver failed to load properly
//                NVAPI_OK    : success
//
///////////////////////////////////////////////////////////////////////////////
#define NVAPI_OGLEXPERT_DETAIL_NONE                 0x00000000
#define NVAPI_OGLEXPERT_DETAIL_ERROR                0x00000001
#define NVAPI_OGLEXPERT_DETAIL_SWFALLBACK           0x00000002
#define NVAPI_OGLEXPERT_DETAIL_BASIC_INFO           0x00000004
#define NVAPI_OGLEXPERT_DETAIL_DETAILED_INFO        0x00000008
#define NVAPI_OGLEXPERT_DETAIL_PERFORMANCE_WARNING  0x00000010
#define NVAPI_OGLEXPERT_DETAIL_QUALITY_WARNING      0x00000020
#define NVAPI_OGLEXPERT_DETAIL_USAGE_WARNING        0x00000040
#define NVAPI_OGLEXPERT_DETAIL_ALL                  0xFFFFFFFF

#define NVAPI_OGLEXPERT_REPORT_NONE                 0x00000000
#define NVAPI_OGLEXPERT_REPORT_ERROR                0x00000001
#define NVAPI_OGLEXPERT_REPORT_SWFALLBACK           0x00000002
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_VERTEX      0x00000004
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_GEOMETRY    0x00000008
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_XFB         0x00000010
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_RASTER      0x00000020
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_FRAGMENT    0x00000040
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_ROP         0x00000080
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_FRAMEBUFFER 0x00000100
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_PIXEL       0x00000200
#define NVAPI_OGLEXPERT_REPORT_PIPELINE_TEXTURE     0x00000400
#define NVAPI_OGLEXPERT_REPORT_OBJECT_BUFFEROBJECT  0x00000800
#define NVAPI_OGLEXPERT_REPORT_OBJECT_TEXTURE       0x00001000
#define NVAPI_OGLEXPERT_REPORT_OBJECT_PROGRAM       0x00002000
#define NVAPI_OGLEXPERT_REPORT_OBJECT_FBO           0x00004000
#define NVAPI_OGLEXPERT_REPORT_FEATURE_SLI          0x00008000
#define NVAPI_OGLEXPERT_REPORT_ALL                  0xFFFFFFFF

#define NVAPI_OGLEXPERT_OUTPUT_TO_NONE              0x00000000
#define NVAPI_OGLEXPERT_OUTPUT_TO_CONSOLE           0x00000001
#define NVAPI_OGLEXPERT_OUTPUT_TO_DEBUGGER          0x00000004
#define NVAPI_OGLEXPERT_OUTPUT_TO_CALLBACK          0x00000008
#define NVAPI_OGLEXPERT_OUTPUT_TO_ALL               0xFFFFFFFF

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION TYPE: NVAPI_OGLEXPERT_CALLBACK
//
//   DESCRIPTION: Used in conjunction with OUTPUT_TO_CALLBACK, this is a simple 
//                callback function the user may use to obtain the feedback 
//                stream. The function will be called once per fully qualified 
//                feedback stream entry.
//
//    PARAMETERS: categoryId   Contains the bit from the NVAPI_OGLEXPERT_REPORT 
//                             mask that corresponds to the current message
//                messageId    Unique Id for the current message
//                detailLevel  Contains the bit from the NVAPI_OGLEXPERT_DETAIL
//                             mask that corresponds to the current message
//                objectId     Unique Id of the object that corresponds to the
//                             current message
//                messageStr   Text string from the current message
//
///////////////////////////////////////////////////////////////////////////////
typedef void (* NVAPI_OGLEXPERT_CALLBACK) (unsigned int categoryId, unsigned int messageId, unsigned int detailLevel, int objectId, const char *messageStr);

//  SUPPORTED OS: Windows XP and higher
NVAPI_INTERFACE NvAPI_OGL_ExpertModeSet(NvU32 expertDetailLevel,
                                        NvU32 expertReportMask,
                                        NvU32 expertOutputMask,
                     NVAPI_OGLEXPERT_CALLBACK expertCallback);


//  SUPPORTED OS: Windows XP and higher
NVAPI_INTERFACE NvAPI_OGL_ExpertModeGet(NvU32 *pExpertDetailLevel,
                                        NvU32 *pExpertReportMask,
                                        NvU32 *pExpertOutputMask,
                     NVAPI_OGLEXPERT_CALLBACK *pExpertCallback);

///////////////////////////////////////////////////////////////////////////////
//
// FUNCTION NAME: NvAPI_OGL_ExpertModeDefaultsSet[Get]
//
//   DESCRIPTION: Configure OpenGL Expert Mode global defaults. These settings
//                apply to any OpenGL application which starts up after these
//                values are applied (i.e. these settings *do not* apply to
//                currently running applications).
//
//    PARAMETERS: expertDetailLevel Value which specifies the detail level in
//                                  the feedback stream. This is a mask made up
//                                  of NVAPI_OGLEXPERT_LEVEL bits.
//
//                expertReportMask  Mask made up of NVAPI_OGLEXPERT_REPORT bits,
//                                  this parameter specifies the areas of
//                                  functional interest.
//
//                expertOutputMask  Mask made up of NVAPI_OGLEXPERT_OUTPUT bits,
//                                  this parameter specifies the feedback output
//                                  location. Note that using OUTPUT_TO_CALLBACK
//                                  here is meaningless and has no effect, but
//                                  using it will not cause an error.
//
// RETURN STATUS: NVAPI_ERROR or NVAPI_OK
//
///////////////////////////////////////////////////////////////////////////////

//  SUPPORTED OS: Windows XP and higher
NVAPI_INTERFACE NvAPI_OGL_ExpertModeDefaultsSet(NvU32 expertDetailLevel,
                                                NvU32 expertReportMask,
                                                NvU32 expertOutputMask);

//  SUPPORTED OS: Windows XP and higher
NVAPI_INTERFACE NvAPI_OGL_ExpertModeDefaultsGet(NvU32 *pExpertDetailLevel,
                                                NvU32 *pExpertReportMask,
                                                NvU32 *pExpertOutputMask);

#define NVAPI_MAX_VIEW_TARGET  2

typedef enum _NV_TARGET_VIEW_MODE
{
    NV_VIEW_MODE_STANDARD  = 0,
    NV_VIEW_MODE_CLONE     = 1,
    NV_VIEW_MODE_HSPAN     = 2,
    NV_VIEW_MODE_VSPAN     = 3,
    NV_VIEW_MODE_DUALVIEW  = 4,
    NV_VIEW_MODE_MULTIVIEW = 5,
} NV_TARGET_VIEW_MODE;


// Following definitions are used in NvAPI_SetViewEx.
// Scaling modes
typedef enum _NV_SCALING
{
    NV_SCALING_DEFAULT          = 0,        // No change
    NV_SCALING_MONITOR_SCALING  = 1,
    NV_SCALING_ADAPTER_SCALING  = 2,
    NV_SCALING_CENTERED         = 3,
    NV_SCALING_ASPECT_SCALING   = 5,
    NV_SCALING_CUSTOMIZED       = 255       // For future use
} NV_SCALING;

// Rotate modes
typedef enum _NV_ROTATE
{
    NV_ROTATE_0           = 0,
    NV_ROTATE_90          = 1,
    NV_ROTATE_180         = 2,
    NV_ROTATE_270         = 3
} NV_ROTATE;

// Color formats
typedef enum _NV_FORMAT
{
    NV_FORMAT_UNKNOWN       =  0,       // unknown. Driver will choose one as following value.
    NV_FORMAT_P8            = 41,       // for 8bpp mode
    NV_FORMAT_R5G6B5        = 23,       // for 16bpp mode
    NV_FORMAT_A8R8G8B8      = 21,       // for 32bpp mode
    NV_FORMAT_A16B16G16R16F = 113       // for 64bpp(floating point) mode.
} NV_FORMAT;

// TV standard


///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME:   NvAPI_SetView
//
// DESCRIPTION:     This API lets caller to modify target display arrangement for selected source display handle in any of the nview modes.
//                  It also allows to modify or extend the source display in dualview mode.
//
//  SUPPORTED OS: Windows Vista and higher
//
// PARAMETERS:      hNvDisplay(IN) - NVIDIA Display selection. NVAPI_DEFAULT_HANDLE not allowed, it has to be a handle enumerated with NvAPI_EnumNVidiaDisplayHandle().
//                  pTargetInfo(IN) - Pointer to array of NV_VIEW_TARGET_INFO, specifying device properties in this view.
//                                    The first device entry in the array is the physical primary.
//                                    The device entry with the lowest source id is the desktop primary.
//                  targetCount(IN) - Count of target devices specified in pTargetInfo.
//                  targetView(IN) - Target view selected from NV_TARGET_VIEW_MODE.
//
// RETURN STATUS: 
//                  NVAPI_OK - completed request
//                  NVAPI_ERROR - miscellaneous error occurred
//                  NVAPI_INVALID_ARGUMENT: Invalid input parameter.
//
///////////////////////////////////////////////////////////////////////////////

typedef struct
{
    NvU32 version;     // (IN) structure version
    NvU32 count;       // (IN) target count
    struct 
    {
        NvU32 deviceMask;   // (IN/OUT) device mask
        NvU32 sourceId;     // (IN/OUT) source id
        NvU32 bPrimary:1;   // (OUT) Indicates if this is the GPU's primary view target. This is not the desktop GDI primary.
                            // NvAPI_SetView automatically selects the first target in NV_VIEW_TARGET_INFO index 0 as the GPU's primary view.
        NvU32 bInterlaced:1;// (IN/OUT) Indicates if the timing being used on this monitor is interlaced
        NvU32 bGDIPrimary:1;// (IN/OUT) Indicates if this is the desktop GDI primary.
    } target[NVAPI_MAX_VIEW_TARGET];
} NV_VIEW_TARGET_INFO; 

#define NV_VIEW_TARGET_INFO_VER  MAKE_NVAPI_VERSION(NV_VIEW_TARGET_INFO,2)

NVAPI_INTERFACE NvAPI_SetView(NvDisplayHandle hNvDisplay, NV_VIEW_TARGET_INFO *pTargetInfo, NV_TARGET_VIEW_MODE targetView);

///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME:   NvAPI_GetView
//
// DESCRIPTION:     This API lets caller retrieve the target display arrangement for selected source display handle.
//
//  SUPPORTED OS: Windows Vista and higher
//
// PARAMETERS:      hNvDisplay(IN) - NVIDIA Display selection. NVAPI_DEFAULT_HANDLE not allowed, it has to be a handle enumerated with NvAPI_EnumNVidiaDisplayHandle().
//                  pTargetInfo(OUT) - User allocated storage to retrieve an array of  NV_VIEW_TARGET_INFO. Can be NULL to retrieve the targetCount.
//                  targetMaskCount(IN/OUT) - Count of target device mask specified in pTargetMask.
//                  targetView(OUT) - Target view selected from NV_TARGET_VIEW_MODE.
//
// RETURN STATUS: 
//                  NVAPI_OK - completed request
//                  NVAPI_ERROR - miscellaneous error occurred
//                  NVAPI_INVALID_ARGUMENT: Invalid input parameter.
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetView(NvDisplayHandle hNvDisplay, NV_VIEW_TARGET_INFO *pTargets, NvU32 *pTargetMaskCount, NV_TARGET_VIEW_MODE *pTargetView);

///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME:   NvAPI_SetViewEx
//
// DESCRIPTION:     This API lets caller to modify the display arrangement for selected source display handle in any of the nview modes.
//                  It also allows to modify or extend the source display in dualview mode.
//
//  SUPPORTED OS: Windows Vista and higher
//
// PARAMETERS:      hNvDisplay(IN) - NVIDIA Display selection. NVAPI_DEFAULT_HANDLE not allowed, it has to be a handle enumerated with NvAPI_EnumNVidiaDisplayHandle().
//                  pPathInfo(IN)  - Pointer to array of NV_VIEW_PATH_INFO, specifying device properties in this view.
//                                    The first device entry in the array is the physical primary.
//                                    The device entry with the lowest source id is the desktop primary.
//                  pathCount(IN)  - Count of paths specified in pPathInfo.
//                  displayView(IN)- Display view selected from NV_TARGET_VIEW_MODE.
//
// RETURN STATUS: 
//                  NVAPI_OK - completed request
//                  NVAPI_ERROR - miscellaneous error occurred
//                  NVAPI_INVALID_ARGUMENT: Invalid input parameter.
//
///////////////////////////////////////////////////////////////////////////////

#define NVAPI_MAX_DISPLAY_PATH  NVAPI_MAX_VIEW_TARGET

typedef struct
{
    NvU32 version;     // (IN) structure version
    NvU32 count;       // (IN) path count
    struct 
    {
        NvU32                   deviceMask;     // (IN) device mask
        NvU32                   sourceId;       // (IN) source id
        NvU32                   bPrimary:1;     // (IN/OUT) Indicates if this is the GPU's primary view target. This is not the desktop GDI primary.
                                                // NvAPI_SetViewEx automatically selects the first target in NV_DISPLAY_PATH_INFO index 0 as the GPU's primary view.
        NV_GPU_CONNECTOR_TYPE   connector;      // (IN) Specify connector type. For TV only.
        
        // source mode information
        NvU32                   width;          // (IN) width of the mode
        NvU32                   height;         // (IN) height of the mode
        NvU32                   depth;          // (IN) depth of the mode
        NV_FORMAT               colorFormat;    //      color format if needs to specify. Not used now.
        
        //rotation setting of the mode
        NV_ROTATE               rotation;       // (IN) rotation setting.
      
        // the scaling mode
        NV_SCALING              scaling;        // (IN) scaling setting

        // Timing info
        NvU32                   refreshRate;    // (IN) refresh rate of the mode
        NvU32                   interlaced:1;   // (IN) interlaced mode flag

        NV_DISPLAY_TV_FORMAT    tvFormat;       // (IN) to choose the last TV format set this value to NV_DISPLAY_TV_FORMAT_NONE

        // Windows desktop position
        NvU32                   posx;           // (IN/OUT) x offset of this display on the Windows desktop
        NvU32                   posy;           // (IN/OUT) y offset of this display on the Windows desktop
        NvU32                   bGDIPrimary:1;  // (IN/OUT) Indicates if this is the desktop GDI primary.

    } path[NVAPI_MAX_DISPLAY_PATH];
} NV_DISPLAY_PATH_INFO; 

#define NV_DISPLAY_PATH_INFO_VER  MAKE_NVAPI_VERSION(NV_DISPLAY_PATH_INFO,2)

NVAPI_INTERFACE NvAPI_SetViewEx(NvDisplayHandle hNvDisplay, NV_DISPLAY_PATH_INFO *pPathInfo, NV_TARGET_VIEW_MODE displayView);

///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME:   NvAPI_GetViewEx
//
// DESCRIPTION:     This API lets caller retrieve the target display arrangement for selected source display handle.
//
//  SUPPORTED OS: Windows Vista and higher
//
// PARAMETERS:      hNvDisplay(IN) - NVIDIA Display selection. NVAPI_DEFAULT_HANDLE not allowed, it has to be a handle enumerated with NvAPI_EnumNVidiaDisplayHandle().
//                  pPathInfo(IN/OUT) - count field should be set to NVAPI_MAX_DISPLAY_PATH. Can be NULL to retrieve just the pathCount.
//                  pPathCount(IN/OUT) - Number of elements in array pPathInfo->path.
//                  pTargetViewMode(OUT)- Display view selected from NV_TARGET_VIEW_MODE.
//
// RETURN STATUS: 
//                  NVAPI_OK - completed request
//                  NVAPI_API_NOT_INTIALIZED - NVAPI not initialized
//                  NVAPI_ERROR - miscellaneous error occurred
//                  NVAPI_INVALID_ARGUMENT - Invalid input parameter.
//                  NVAPI_EXPECTED_DISPLAY_HANDLE - hNvDisplay is not a valid display handle.
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetViewEx(NvDisplayHandle hNvDisplay, NV_DISPLAY_PATH_INFO *pPathInfo, NvU32 *pPathCount, NV_TARGET_VIEW_MODE *pTargetViewMode);

///////////////////////////////////////////////////////////////////////////////
// FUNCTION NAME:   NvAPI_GetSupportedViews
//
// DESCRIPTION:     This API lets caller enumerate all the supported NVIDIA display views - nview and dualview modes.
//
//  SUPPORTED OS: Windows XP and higher
//
// PARAMETERS:      hNvDisplay(IN) - NVIDIA Display selection. It can be NVAPI_DEFAULT_HANDLE or a handle enumerated from NvAPI_EnumNVidiaDisplayHandle().
//                  pTargetViews(OUT) - Array of supported views. Can be NULL to retrieve the pViewCount first.
//                  pViewCount(IN/OUT) - Count of supported views.
//
// RETURN STATUS: 
//                  NVAPI_OK - completed request
//                  NVAPI_ERROR - miscellaneous error occurred
//                  NVAPI_INVALID_ARGUMENT: Invalid input parameter.
//
///////////////////////////////////////////////////////////////////////////////
NVAPI_INTERFACE NvAPI_GetSupportedViews(NvDisplayHandle hNvDisplay, NV_TARGET_VIEW_MODE *pTargetViews, NvU32 *pViewCount);


#ifdef __cplusplus
}; //extern "C" {
#endif

#pragma pack(pop)

#endif // _NVAPI_H