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boinc/clientscr/screensaver_win.cpp

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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
//
// Contributor(s):
// DirectX 8.1 Screen Saver Framework from Microsoft.
// Microsoft Knowledge Base Article - 79212
//
#include "boinc_win.h"
#include <windowsx.h>
#include <mmsystem.h>
#include <regstr.h>
#include <strsafe.h>
#include <mmsystem.h>
#define COMPILE_MULTIMON_STUBS
#include "boinc_ss.h"
#include "diagnostics.h"
#include "common_defs.h"
#include "util.h"
#include "gui_rpc_client.h"
#include "screensaver.h"
#include "screensaver_win.h"
#ifdef _DEBUG
#define UNUSED(x)
#else
#define UNUSED(x) x
#endif
static HMODULE gshUser32 = NULL;
static HMODULE gshPasswordCPL = NULL;
static VERIFYPWDPROC gspfnMyVerifyPwdProc = NULL;
static MYGETLASTINPUTINFO gspfnMyGetLastInputInfo = NULL;
static MYISHUNGAPPWINDOW gspfnMyIsHungAppWindow = NULL;
static MYBROADCASTSYSTEMMESSAGE gspfnMyBroadcastSystemMessage = NULL;
static CScreensaver* gspScreensaver = NULL;
const UINT WM_SETTIMER = RegisterWindowMessage(TEXT("BOINCSetTimer"));
const UINT WM_INTERRUPTSAVER = RegisterWindowMessage(TEXT("BOINCInterruptScreensaver"));
const UINT WM_BOINCSFW = RegisterWindowMessage(TEXT("BOINCSetForegroundWindow"));
INT WINAPI WinMain(
HINSTANCE hInstance, HINSTANCE UNUSED(hPrevInstance), LPSTR UNUSED(lpCmdLine), int UNUSED(nCmdShow)
) {
HRESULT hr;
CScreensaver BOINCSS;
int retval;
WSADATA wsdata;
BOOL bIs95 = FALSE;
BOOL bIs9x = FALSE;
DWORD dwVal;
DWORD dwSize = sizeof(dwVal);
HKEY hKey;
#ifdef _DEBUG
// Initialize Diagnostics
retval = diagnostics_init (
BOINC_DIAG_DUMPCALLSTACKENABLED |
BOINC_DIAG_HEAPCHECKENABLED |
BOINC_DIAG_MEMORYLEAKCHECKENABLED |
BOINC_DIAG_ARCHIVESTDOUT |
BOINC_DIAG_REDIRECTSTDOUTOVERWRITE |
BOINC_DIAG_REDIRECTSTDERROVERWRITE |
BOINC_DIAG_TRACETOSTDOUT,
"stdoutscr",
"stderrscr"
);
if (retval) {
BOINCTRACE("WinMain - BOINC Screensaver Diagnostic Error '%d'\n", retval);
MessageBox(NULL, NULL, "BOINC Screensaver Diagnostic Error", MB_OK);
}
#endif
// Figure out if we're on Win9x
OSVERSIONINFO osvi;
osvi.dwOSVersionInfoSize = sizeof(osvi);
GetVersionEx(&osvi);
bIs9x = osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS;
bIs95 = (osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) &&
((osvi.dwMajorVersion == 4) && (osvi.dwMinorVersion == 0));
// Load dynamically linked modules
gshUser32 = LoadLibrary(_T("USER32.DLL"));
if (bIs9x) {
gshPasswordCPL = LoadLibrary(_T("PASSWORD.CPL"));
}
// Map function pointers
if (gshUser32) {
gspfnMyGetLastInputInfo = (MYGETLASTINPUTINFO) GetProcAddress(gshUser32, _T("GetLastInputInfo"));
gspfnMyIsHungAppWindow = (MYISHUNGAPPWINDOW) GetProcAddress(gshUser32, _T("IsHungAppWindow"));
if (bIs95) {
gspfnMyBroadcastSystemMessage = (MYBROADCASTSYSTEMMESSAGE) GetProcAddress(gshUser32, _T("BroadcastSystemMessage"));
} else {
gspfnMyBroadcastSystemMessage = (MYBROADCASTSYSTEMMESSAGE) GetProcAddress(gshUser32, _T("BroadcastSystemMessageA"));
}
}
if (gshPasswordCPL) {
if (RegOpenKey(HKEY_CURRENT_USER , REGSTR_PATH_SCREENSAVE , &hKey) == ERROR_SUCCESS) {
if ((RegQueryValueEx(hKey, REGSTR_VALUE_USESCRPASSWORD, NULL, NULL, (BYTE *)&dwVal, &dwSize) == ERROR_SUCCESS) && dwVal) {
gspfnMyVerifyPwdProc = (VERIFYPWDPROC)GetProcAddress(gshPasswordCPL, _T("VerifyScreenSavePwd"));
RegCloseKey(hKey);
}
}
}
// Initialize the CRT random number generator.
srand((unsigned int)time(0));
// Initialize the Windows sockets interface.
retval = WSAStartup(MAKEWORD(1, 1), &wsdata);
if (retval) {
BOINCTRACE("WinMain - Winsock Initialization Failure '%d'\n", retval);
return retval;
}
if (FAILED(hr = BOINCSS.Create(hInstance))) {
BOINCSS.DisplayErrorMsg(hr);
WSACleanup();
return 0;
}
retval = BOINCSS.Run();
// Cleanup the Windows sockets interface.
WSACleanup();
// Clean up function pointers.
gspfnMyGetLastInputInfo = NULL;
gspfnMyIsHungAppWindow = NULL;
gspfnMyBroadcastSystemMessage = NULL;
gspfnMyVerifyPwdProc = NULL;
// Free modules
FreeLibrary(gshUser32);
if (gshPasswordCPL) {
FreeLibrary(gshPasswordCPL);
gshPasswordCPL = NULL;
}
return retval;
}
CScreensaver::CScreensaver() {
gspScreensaver = this;
m_bCheckingSaverPassword = FALSE;
m_bIs9x = FALSE;
m_dwSaverMouseMoveCount = 0;
m_hWnd = NULL;
m_hWndParent = NULL;
m_bAllScreensSame = FALSE;
m_bWindowed = FALSE;
m_bWaitForInputIdle = FALSE;
m_bErrorMode = FALSE;
m_hrError = S_OK;
m_szError[0] = _T('\0');
LoadString(NULL, IDS_DESCRIPTION, m_strWindowTitle, 200);
m_bPaintingInitialized = FALSE;
m_dwBlankScreen = 0;
m_dwBlankTime = 0;
rpc = NULL;
m_hDataManagementThread = NULL;
m_hGraphicsApplication = NULL;
m_bResetCoreState = TRUE;
m_QuitDataManagementProc = FALSE;
m_bBOINCConfigChecked = FALSE;
m_bBOINCStartupConfigured = FALSE;
memset(&m_running_result, 0, sizeof(m_running_result));
ZeroMemory(m_Monitors, sizeof(m_Monitors));
m_dwNumMonitors = 0;
m_dwLastInputTimeAtStartup = 0;
m_tThreadCreateTime = 0;
}
// Have the client program call this function before calling Run().
//
HRESULT CScreensaver::Create(HINSTANCE hInstance) {
HRESULT hr;
BOOL bReturnValue;
m_hInstance = hInstance;
// Parse the command line and do the appropriate thing
m_SaverMode = ParseCommandLine(GetCommandLine());
// Figure out if we're on Win9x
OSVERSIONINFO osvi;
osvi.dwOSVersionInfoSize = sizeof(osvi);
GetVersionEx(&osvi);
m_bIs9x = (osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS);
// Store last input value if it exists
if (gspfnMyGetLastInputInfo) {
LASTINPUTINFO lii;
lii.cbSize = sizeof(LASTINPUTINFO);
gspfnMyGetLastInputInfo(&lii);
m_dwLastInputTimeAtStartup = lii.dwTime;
}
// Enumerate Monitors
EnumMonitors();
// Retrieve the blank screen flag so we can determine if we are
// suppose to actually blank the screen at some point.
bReturnValue = UtilGetRegKey(REG_BLANK_NAME, m_dwBlankScreen);
BOINCTRACE("CScreensaver::Create - Get Reg Key REG_BLANK_NAME return value '%d'\n", bReturnValue);
if (bReturnValue != 0) m_dwBlankScreen = 0;
// Retrieve the blank screen timeout
// make sure you check return value of registry queries
// in case the item in question doesn't happen to exist.
bReturnValue = UtilGetRegKey(REG_BLANK_TIME, m_dwBlankTime);
BOINCTRACE("CScreensaver::Create - Get Reg Key REG_BLANK_TIME return value '%d'\n", bReturnValue);
if (bReturnValue != 0) m_dwBlankTime = 5;
// Save the value back to the registry in case this is the first
// execution and so we need the default value later.
bReturnValue = UtilSetRegKey(REG_BLANK_NAME, m_dwBlankScreen);
BOINCTRACE("CScreensaver::Create - Set Reg Key REG_BLANK_NAME return value '%d'\n", bReturnValue);
bReturnValue = UtilSetRegKey(REG_BLANK_TIME, m_dwBlankTime);
BOINCTRACE("CScreensaver::Create - Set Reg Key REG_BLANK_TIME return value '%d'\n", bReturnValue);
// Calculate the estimated blank time by adding the current time
// and and the user specified time which is in minutes
m_dwBlankTime = (DWORD)time(0) + (m_dwBlankTime * 60);
// Create the infrastructure mutexes so we can properly aquire them to report
// errors
if (!CreateInfrastructureMutexes()) {
return E_FAIL;
}
if (rpc == NULL) rpc = new RPC_CLIENT;
// Create the screen saver window(s)
if (m_SaverMode == sm_preview ||
m_SaverMode == sm_full
) {
if (FAILED(hr = CreateSaverWindow())) {
SetError(TRUE, hr);
}
}
if (m_SaverMode == sm_preview) {
// In preview mode, "pause" (enter a limited message loop) briefly
// before proceeding, so the display control panel knows to update itself.
m_bWaitForInputIdle = TRUE;
// Post a message to mark the end of the initial group of window messages
PostMessage(m_hWnd, WM_SETTIMER, 0, 0);
MSG msg;
while(m_bWaitForInputIdle) {
// If GetMessage returns FALSE, it's quitting time.
if (!GetMessage(&msg, m_hWnd, 0, 0)) {
// Post the quit message to handle it later
PostQuitMessage(0);
break;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return S_OK;
}
// Starts main execution of the screen saver.
//
INT CScreensaver::Run() {
HOST_INFO hostinfo;
HRESULT hr;
// Parse the command line and do the appropriate thing
switch (m_SaverMode) {
case sm_config:
if (m_bErrorMode) {
DisplayErrorMsg(m_hrError);
} else {
DoConfig();
}
break;
case sm_test:
rpc->init(NULL);
rpc->get_host_info(hostinfo);
rpc->close();
break;
case sm_preview:
// In Windows, preview mode is for the mini-view of the screensaver.
// For BOINC we just display the icon, so there is no need to
// startup the data management thread which in turn will
// launch a graphics application.
if (FAILED(hr = DoSaver())) {
DisplayErrorMsg(hr);
}
break;
case sm_full:
// Create the data management thread to talk with the daemon
if (!CreateDataManagementThread()) {
return E_FAIL;
}
if (FAILED(hr = DoSaver())) {
DisplayErrorMsg(hr);
}
// Create the data management thread to talk with the daemon
//
if (!DestroyDataManagementThread()) {
return E_FAIL;
}
if (rpc) {
delete rpc;
rpc = NULL;
}
break;
case sm_passwordchange:
ChangePassword();
break;
}
return 0;
}
// Displays error messages in a message box
//
HRESULT CScreensaver::DisplayErrorMsg(HRESULT hr) {
TCHAR strMsg[512];
GetTextForError(hr, strMsg, 512);
MessageBox(m_hWnd, strMsg, m_strWindowTitle, MB_ICONERROR | MB_OK);
return hr;
}
// Interpret command-line parameters passed to this app.
//
SaverMode CScreensaver::ParseCommandLine(TCHAR* pstrCommandLine) {
m_hWndParent = NULL;
BOINCTRACE("ParseCommandLine: '%s'\n", pstrCommandLine);
// Skip the first part of the command line, which is the full path
// to the exe. If it contains spaces, it will be contained in quotes.
if (*pstrCommandLine == _T('\"')) {
pstrCommandLine++;
while (*pstrCommandLine != _T('\0') && *pstrCommandLine != _T('\"')) {
pstrCommandLine++;
}
if (*pstrCommandLine == _T('\"')) {
pstrCommandLine++;
}
} else {
while (*pstrCommandLine != _T('\0') && *pstrCommandLine != _T(' ')) {
pstrCommandLine++;
}
if (*pstrCommandLine == _T(' ')) {
pstrCommandLine++;
}
}
// Skip along to the first option delimiter "/" or "-"
while (*pstrCommandLine != _T('\0') && *pstrCommandLine != _T('/') && *pstrCommandLine != _T('-')) {
pstrCommandLine++;
}
// If there wasn't one, then must be config mode
if (*pstrCommandLine == _T('\0')) {
return sm_config;
}
// Otherwise see what the option was
switch (*(++pstrCommandLine)) {
case 'c':
case 'C':
pstrCommandLine++;
while (*pstrCommandLine && !isdigit(*pstrCommandLine)) {
pstrCommandLine++;
}
if (isdigit(*pstrCommandLine)) {
#ifdef _WIN64
m_hWndParent = (HWND)_atoi64(pstrCommandLine);
#else
m_hWndParent = (HWND)_ttol(pstrCommandLine);
#endif
} else {
m_hWndParent = NULL;
}
return sm_config;
case 't':
case 'T':
return sm_test;
case 'p':
case 'P':
// Preview-mode, so option is followed by the parent HWND in decimal
pstrCommandLine++;
while (*pstrCommandLine && !isdigit(*pstrCommandLine)) {
pstrCommandLine++;
}
if (isdigit(*pstrCommandLine)) {
#ifdef _WIN64
m_hWndParent = (HWND)_atoi64(pstrCommandLine);
#else
m_hWndParent = (HWND)_ttol(pstrCommandLine);
#endif
}
return sm_preview;
case 'a':
case 'A':
// Password change mode, so option is followed by parent HWND in decimal
pstrCommandLine++;
while (*pstrCommandLine && !isdigit(*pstrCommandLine)) {
pstrCommandLine++;
}
if (isdigit(*pstrCommandLine)) {
#ifdef _WIN64
m_hWndParent = (HWND)_atoi64(pstrCommandLine);
#else
m_hWndParent = (HWND)_ttol(pstrCommandLine);
#endif
}
return sm_passwordchange;
default:
// All other options => run the screensaver (typically this is "/s")
return sm_full;
}
}
// Determine HMONITOR, desktop rect, and other info for each monitor.
// Note that EnumDisplayDevices enumerates monitors in the order
// indicated on the Settings page of the Display control panel, which
// is the order we want to list monitors in, as opposed to the order
// used by D3D's GetAdapterInfo.
//
VOID CScreensaver::EnumMonitors(VOID) {
DWORD iDevice = 0;
DISPLAY_DEVICE_FULL dispdev;
DISPLAY_DEVICE_FULL dispdev2;
DEVMODE devmode;
dispdev.cb = sizeof(dispdev);
dispdev2.cb = sizeof(dispdev2);
devmode.dmSize = sizeof(devmode);
devmode.dmDriverExtra = 0;
INTERNALMONITORINFO* pMonitorInfoNew;
while(EnumDisplayDevices(NULL, iDevice, (DISPLAY_DEVICE*)&dispdev, 0)) {
// Ignore NetMeeting's mirrored displays
if ((dispdev.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER) == 0) {
// To get monitor info for a display device, call EnumDisplayDevices
// a second time, passing dispdev.DeviceName (from the first call) as
// the first parameter.
EnumDisplayDevices(dispdev.DeviceName, 0, (DISPLAY_DEVICE*)&dispdev2, 0);
pMonitorInfoNew = &m_Monitors[m_dwNumMonitors];
ZeroMemory(pMonitorInfoNew, sizeof(INTERNALMONITORINFO));
StringCchCopy(pMonitorInfoNew->strDeviceName, 128, dispdev.DeviceString);
StringCchCopy(pMonitorInfoNew->strMonitorName, 128, dispdev2.DeviceString);
if (dispdev.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP) {
EnumDisplaySettings(dispdev.DeviceName, ENUM_CURRENT_SETTINGS, &devmode);
if (dispdev.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE) {
// For some reason devmode.dmPosition is not always (0, 0)
// for the primary display, so force it.
pMonitorInfoNew->rcScreen.left = 0;
pMonitorInfoNew->rcScreen.top = 0;
} else {
pMonitorInfoNew->rcScreen.left = devmode.dmPosition.x;
pMonitorInfoNew->rcScreen.top = devmode.dmPosition.y;
}
pMonitorInfoNew->rcScreen.right = pMonitorInfoNew->rcScreen.left + devmode.dmPelsWidth;
pMonitorInfoNew->rcScreen.bottom = pMonitorInfoNew->rcScreen.top + devmode.dmPelsHeight;
pMonitorInfoNew->hMonitor = MonitorFromRect(&pMonitorInfoNew->rcScreen, MONITOR_DEFAULTTONULL);
}
m_dwNumMonitors++;
if (m_dwNumMonitors == MAX_DISPLAYS) {
break;
}
}
iDevice++;
}
}
// arguments: name: name of key, keyval: where to store value of key
// returns: int indicating error
// function: reads string value in specified key
//
int CScreensaver::UtilSetRegKey(LPCTSTR name, DWORD value) {
LONG error;
HKEY boinc_key;
if (m_bIs9x) {
error = RegCreateKeyEx(
HKEY_LOCAL_MACHINE,
_T("SOFTWARE\\Space Sciences Laboratory, U.C. Berkeley\\BOINC Screensaver"),
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_READ | KEY_WRITE,
NULL,
&boinc_key,
NULL
);
if (error != ERROR_SUCCESS) return -1;
} else {
error = RegCreateKeyEx(
HKEY_CURRENT_USER,
_T("SOFTWARE\\Space Sciences Laboratory, U.C. Berkeley\\BOINC Screensaver"),
0,
NULL,
REG_OPTION_NON_VOLATILE,
KEY_READ | KEY_WRITE,
NULL,
&boinc_key,
NULL
);
if (error != ERROR_SUCCESS) return -1;
}
error = RegSetValueEx(boinc_key, name, 0, REG_DWORD, (CONST BYTE *)&value, 4);
RegCloseKey(boinc_key);
return 0;
}
// arguments: name: name of key, keyval: where to store value of key
// returns: int indicating error
// function: reads string value in specified key
//
int CScreensaver::UtilGetRegKey(LPCTSTR name, DWORD &keyval) {
LONG error;
DWORD type = REG_DWORD;
DWORD size = sizeof(DWORD);
DWORD value;
HKEY boinc_key;
if (m_bIs9x) {
error = RegOpenKeyEx(
HKEY_LOCAL_MACHINE,
_T("SOFTWARE\\Space Sciences Laboratory, U.C. Berkeley\\BOINC Screensaver"),
0,
KEY_ALL_ACCESS,
&boinc_key
);
if (error != ERROR_SUCCESS) return -1;
} else {
error = RegOpenKeyEx(
HKEY_CURRENT_USER,
_T("SOFTWARE\\Space Sciences Laboratory, U.C. Berkeley\\BOINC Screensaver"),
0,
KEY_ALL_ACCESS,
&boinc_key
);
if (error != ERROR_SUCCESS) return -1;
}
error = RegQueryValueEx(boinc_key, name, NULL, &type, (BYTE *)&value, &size);
keyval = value;
RegCloseKey(boinc_key);
if (error != ERROR_SUCCESS) return -1;
return 0;
}
// arguments: name: name of key, str: value of string to store
// if str is empty, attepts to delete the key
// returns: int indicating error
// function: sets string value in specified key in windows startup dir
//
int CScreensaver::UtilGetRegStartupStr(LPCTSTR name, LPTSTR str) {
LONG error;
DWORD type = REG_SZ;
DWORD size = 128;
HKEY boinc_key;
*str = 0;
if (m_bIs9x) {
error = RegOpenKeyEx(
HKEY_LOCAL_MACHINE,
_T("Software\\Microsoft\\Windows\\CurrentVersion\\Run"),
0,
KEY_ALL_ACCESS,
&boinc_key
);
if (error != ERROR_SUCCESS) return -1;
} else {
error = RegOpenKeyEx(
HKEY_CURRENT_USER,
_T("Software\\Microsoft\\Windows\\CurrentVersion\\Run"),
0,
KEY_ALL_ACCESS,
&boinc_key
);
if (error != ERROR_SUCCESS) return -1;
}
error = RegQueryValueEx(boinc_key, name, NULL, &type, (BYTE*)str, &size);
RegCloseKey(boinc_key);
if (error != ERROR_SUCCESS) return -1;
return ERROR_SUCCESS;
}
// Determine if BOINC is configured to automatically start at logon/startup.
//
BOOL CScreensaver::IsConfigStartupBOINC() {
BOOL bRetVal;
BOOL bCheckFileExists;
TCHAR szBuffer[MAX_PATH];
TCHAR szShortcutBuffer[MAX_PATH];
HANDLE hFileHandle;
HMODULE hShell32;
MYSHGETFOLDERPATH pfnMySHGetFolderPath = NULL;
// Lets set the default value to FALSE
bRetVal = FALSE;
// Load the shortcut filename into the shortcut buffer.
LoadString(NULL, IDS_SHORTCUTNAME, szShortcutBuffer, sizeof(szShortcutBuffer)/sizeof(TCHAR));
// Attempt to link to dynamic function if it exists
hShell32 = LoadLibrary(_T("SHELL32.DLL"));
if (NULL != hShell32)
pfnMySHGetFolderPath = (MYSHGETFOLDERPATH) GetProcAddress(hShell32, _T("SHGetFolderPathA"));
// Now lets begin looking in the registry
if (ERROR_SUCCESS == UtilGetRegStartupStr(REG_STARTUP_NAME, szBuffer)) {
bRetVal = TRUE;
} else {
// It could be in the global startup group
ZeroMemory(szBuffer, sizeof(szBuffer));
bCheckFileExists = FALSE;
if (NULL != pfnMySHGetFolderPath) {
if (SUCCEEDED((pfnMySHGetFolderPath)(NULL, CSIDL_STARTUP|CSIDL_FLAG_CREATE, NULL, SHGFP_TYPE_CURRENT, szBuffer))) {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: pfnMySHGetFolderPath - CSIDL_STARTUP - '%s'\n"), szBuffer);
StringCchCatN(szBuffer, sizeof(szBuffer), _T("\\"), sizeof(_T("\\"))/sizeof(TCHAR));
if (SUCCEEDED(StringCchCatN(szBuffer, sizeof(szBuffer), szShortcutBuffer, sizeof(szShortcutBuffer)/sizeof(TCHAR)))) {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: Final pfnMySHGetFolderPath - CSIDL_STARTUP - '%s'\n"), szBuffer);
bCheckFileExists = TRUE;
} else {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: FAILED pfnMySHGetFolderPath - CSIDL_STARTUP Append Operation\n"));
}
} else {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: FAILED pfnMySHGetFolderPath - CSIDL_STARTUP\n"));
}
}
if (bCheckFileExists) {
hFileHandle = CreateFile(
szBuffer,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (INVALID_HANDLE_VALUE != hFileHandle) {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: CreateFile returned a valid handle '%d'\n"), hFileHandle);
CloseHandle(hFileHandle);
bRetVal = TRUE;
} else {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: CreateFile returned INVALID_HANDLE_VALUE - GetLastError() '%d'\n"), GetLastError());
// It could be in the global startup group
ZeroMemory(szBuffer, sizeof(szBuffer));
bCheckFileExists = FALSE;
if (NULL != pfnMySHGetFolderPath) {
if (SUCCEEDED((pfnMySHGetFolderPath)(NULL, CSIDL_COMMON_STARTUP|CSIDL_FLAG_CREATE, NULL, SHGFP_TYPE_CURRENT, szBuffer))) {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: pfnMySHGetFolderPath - CSIDL_COMMON_STARTUP - '%s'\n"), szBuffer);
StringCchCatN(szBuffer, sizeof(szBuffer), _T("\\"), sizeof(_T("\\"))/sizeof(TCHAR));
if (SUCCEEDED(StringCchCatN(szBuffer, sizeof(szBuffer), szShortcutBuffer, sizeof(szShortcutBuffer)/sizeof(TCHAR)))) {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: Final pfnMySHGetFolderPath - CSIDL_COMMON_STARTUP - '%s'\n"), szBuffer);
bCheckFileExists = TRUE;
} else {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: FAILED pfnMySHGetFolderPath - CSIDL_COMMON_STARTUP Append Operation\n"));
}
} else {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: FAILED pfnMySHGetFolderPath - CSIDL_COMMON_STARTUP\n"));
}
}
if (bCheckFileExists) {
hFileHandle = CreateFile(
szBuffer,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (INVALID_HANDLE_VALUE != hFileHandle) {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: CreateFile returned a valid handle '%d'\n"), hFileHandle);
CloseHandle(hFileHandle);
bRetVal = TRUE;
} else {
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: CreateFile returned INVALID_HANDLE_VALUE - GetLastError() '%d'\n"), GetLastError());
}
}
}
}
}
// Free the dynamically linked to library
FreeLibrary(hShell32);
BOINCTRACE(_T("CScreensaver::IsConfigStartupBOINC: Returning '%d'\n"), bRetVal);
return bRetVal;
}
// Desc: Create the infrastructure for thread safe acccess to the infrastructure
// layer of the screen saver.
//
BOOL CScreensaver::CreateInfrastructureMutexes() {
m_hErrorManagementMutex = CreateMutex(NULL, FALSE, NULL);
if (NULL == m_hErrorManagementMutex) {
BOINCTRACE(_T("CScreensaver::CreateInfrastructureMutexes: Failed to create m_hErrorManagementMutex '%d'\n"), GetLastError());
return FALSE;
}
return TRUE;
}
// Provide a thread-safe implementation for retrieving the current
// error condition.
//
BOOL CScreensaver::GetError(
BOOL& bErrorMode, HRESULT& hrError, TCHAR* pszError, size_t iErrorSize
) {
DWORD dwWaitResult;
BOOL bRetVal = FALSE;
// Request ownership of mutex.
dwWaitResult = WaitForSingleObject(
m_hErrorManagementMutex, // handle to mutex
5000L); // five-second time-out interval
switch (dwWaitResult) {
// WAIT_OBJECT_0 - The thread got mutex ownership.
case WAIT_OBJECT_0:
bErrorMode = m_bErrorMode;
hrError = m_hrError;
if (NULL != pszError) {
StringCbCopyN(pszError, iErrorSize, m_szError, sizeof(m_szError) * sizeof(TCHAR));
}
bRetVal = TRUE;
break;
// WAIT_TIMEOUT - Cannot get mutex ownership due to time-out.
// WAIT_ABANDONED - Got ownership of the abandoned mutex object.
case WAIT_TIMEOUT:
case WAIT_ABANDONED:
break;
}
ReleaseMutex(m_hErrorManagementMutex);
return bRetVal;
}
// Provide a thread-safe implementation for setting the current
// error condition. This API should only be called in the data management
// thread, any other thread may cause a race condition.
//
BOOL CScreensaver::SetError(BOOL bErrorMode, HRESULT hrError) {
DWORD dwWaitResult;
BOOL bRetVal = FALSE;
// Request ownership of mutex.
dwWaitResult = WaitForSingleObject(
m_hErrorManagementMutex, // handle to mutex
5000L // five-second time-out interval
);
switch (dwWaitResult) {
// WAIT_OBJECT_0 - The thread got mutex ownership.
case WAIT_OBJECT_0:
m_bErrorMode = bErrorMode;
m_hrError = hrError;
// Update the error text, including a possible RPC call
// to the daemon.
UpdateErrorBoxText();
bRetVal = TRUE;
break;
// WAIT_TIMEOUT - Cannot get mutex ownership due to time-out.
// WAIT_ABANDONED - Got ownership of the abandoned mutex object.
case WAIT_TIMEOUT:
case WAIT_ABANDONED:
break;
}
ReleaseMutex(m_hErrorManagementMutex);
return bRetVal;
}
// Update the error message
//
VOID CScreensaver::UpdateErrorBoxText() {
PROJECT* pProject;
bool bIsActive = false;
bool bIsExecuting = false;
bool bIsDownloaded = false;
size_t iResultCount = 0;
size_t iIndex = 0;
if ((SCRAPPERR_BOINCNOGRAPHICSAPPSEXECUTING == m_hrError) || (SCRAPPERR_DAEMONALLOWSNOGRAPHICS == m_hrError) ) {
if (m_updating_results) return; // results vector is currently being updated by rpc
iResultCount = results.results.size();
int iModIndex;
for (iIndex = 0; iIndex < iResultCount; iIndex++) {
// cycle through the active results starting from the last one
iModIndex = (iIndex + m_iLastResultShown+1) % iResultCount;
bIsDownloaded = (RESULT_FILES_DOWNLOADED == results.results.at(iModIndex)->state);
bIsActive = (results.results.at(iModIndex)->active_task);
bIsExecuting = (CPU_SCHED_SCHEDULED == results.results.at(iModIndex)->scheduler_state);
if (!(bIsActive) || !(bIsDownloaded) || !(bIsExecuting)) continue;
pProject = state.lookup_project(results.results.at(iModIndex)->project_url);
if (NULL != pProject) {
RESULT* pResult = state.lookup_result(pProject, results.results.at(iModIndex)->name);
if ( pResult != NULL ) {
BOINCTRACE(_T("CScreensaver::UpdateErrorBoxText - Display result. iIndex=%d, iModIndex=%d, lastResult=%d\n"), iIndex, iModIndex, m_iLastResultShown);
StringCbPrintf(m_szError, sizeof(m_szError) / sizeof(TCHAR),
_T("\nComputing for %s\nApplication: %s\nTask: %s\n%.2f%% complete\n"),
pProject->project_name.c_str(),
pResult->app->user_friendly_name.c_str(),
pResult->wu_name.c_str(),
results.results.at(iModIndex)->fraction_done*100
);
if ( m_tLastResultChangeTime+10 < time(0) ) {
m_iLastResultShown = iModIndex;
m_tLastResultChangeTime = time(0);
}
break;
} else {
m_bResetCoreState = TRUE;
GetTextForError(IDS_ERR_GENERIC, m_szError, sizeof(m_szError) / sizeof(TCHAR));
}
} else {
m_bResetCoreState = TRUE;
GetTextForError(IDS_ERR_GENERIC, m_szError, sizeof(m_szError) / sizeof(TCHAR));
}
}
m_szError[ sizeof(m_szError) -1 ] = '\0';
} else {
// Load error string
GetTextForError(m_hrError, m_szError, sizeof(m_szError) / sizeof(TCHAR));
}
BOINCTRACE(_T("CScreensaver::UpdateErrorBoxText - Updated Text '%s'\n"), m_szError);
}
// Translate an HRESULT error code into a string that can be displayed
// to explain the error. A class derived from CD3DScreensaver can
// provide its own version of this function that provides app-specific
// error translation instead of or in addition to calling this function.
// This function returns TRUE if a specific error was translated, or
// FALSE if no specific translation for the HRESULT was found (though
// it still puts a generic string into pszError).
//
BOOL CScreensaver::GetTextForError(
HRESULT hr, TCHAR* pszError, DWORD dwNumChars
) {
const DWORD dwErrorMap[][2] = {
// HRESULT, stringID
E_FAIL, IDS_ERR_GENERIC,
E_OUTOFMEMORY, IDS_ERR_OUTOFMEMORY,
SCRAPPERR_BOINCNOTDETECTED, IDS_ERR_BOINCNOTDETECTED,
SCRAPPERR_BOINCNOTDETECTEDSTARTUP, IDS_ERR_BOINCNOTDETECTEDSTARTUP,
SCRAPPERR_BOINCSUSPENDED, IDS_ERR_BOINCSUSPENDED,
SCRAPPERR_BOINCNOAPPSEXECUTING, IDS_ERR_BOINCNOAPPSEXECUTING,
SCRAPPERR_BOINCNOPROJECTSDETECTED, IDS_ERR_BOINCNOAPPSEXECUTINGNOPROJECTSDETECTED,
SCRAPPERR_BOINCNOGRAPHICSAPPSEXECUTING, IDS_ERR_BOINCNOGRAPHICSAPPSEXECUTING,
SCRAPPERR_BOINCSCREENSAVERLOADING, IDS_ERR_BOINCSCREENSAVERLOADING,
SCRAPPERR_BOINCAPPFOUNDGRAPHICSLOADING, IDS_ERR_BOINCAPPFOUNDGRAPHICSLOADING,
SCRAPPERR_BOINCSHUTDOWNEVENT, IDS_ERR_BOINCSHUTDOWNEVENT,
SCRAPPERR_NOPREVIEW, IDS_ERR_NOPREVIEW,
SCRAPPERR_DAEMONALLOWSNOGRAPHICS, IDS_ERR_DAEMONALLOWSNOGRAPHICS
};
const DWORD dwErrorMapSize = sizeof(dwErrorMap) / sizeof(DWORD[2]);
DWORD iError;
DWORD resid = 0;
for(iError = 0; iError < dwErrorMapSize; iError++) {
if (hr == (HRESULT)dwErrorMap[iError][0]) {
resid = dwErrorMap[iError][1];
}
}
if (resid == 0) {
resid = IDS_ERR_GENERIC;
}
LoadString(NULL, resid, pszError, dwNumChars);
if (resid == IDS_ERR_GENERIC) {
return FALSE;
} else {
return TRUE;
}
}
// Create the thread that is used to talk to the daemon.
//
BOOL CScreensaver::CreateDataManagementThread() {
DWORD dwThreadID = 0;
BOINCTRACE(_T("CScreensaver::CreateDataManagementThread Start\n"));
m_QuitDataManagementProc = FALSE;
m_hDataManagementThread = CreateThread(
NULL, // default security attributes
0, // use default stack size
DataManagementProcStub, // thread function
NULL, // argument to thread function
0, // use default creation flags
&dwThreadID ); // returns the thread identifier
if (m_hDataManagementThread == NULL) {
BOINCTRACE(_T("CScreensaver::CreateDataManagementThread: Failed to create data management thread '%d'\n"), GetLastError());
return FALSE;
}
return TRUE;
}
// Terminate the thread that is used to talk to the daemon.
//
BOOL CScreensaver::DestroyDataManagementThread() {
m_QuitDataManagementProc = TRUE; // Tell RPC Thread to exit
// Wait up to 5 seconds for DataManagementThread to exit
for (int i=0; i<50; i++) {
DWORD dwStatus = STILL_ACTIVE;
BOOL bRetVal = FALSE;
boinc_sleep(0.1);
bRetVal = GetExitCodeThread(m_hDataManagementThread, &dwStatus);
BOINCTRACE(_T("CScreensaver::DestroyDataManagementThread - GetExitCodeThread RetVal = '%d', Status = '%d'\n"), bRetVal, dwStatus);
if (bRetVal && (dwStatus != STILL_ACTIVE)) {
break;
}
}
return TRUE;
}
// This function forwards to DataManagementProc, which has access to the
// "this" pointer.
//
DWORD WINAPI CScreensaver::DataManagementProcStub(LPVOID UNUSED(lpParam)) {
return gspScreensaver->DataManagementProc();
}
void CScreensaver::HandleRPCError()
{
// Attempt to reinitialize the RPC client and state
rpc->close();
rpc->init(NULL);
m_bResetCoreState = TRUE;
if (!m_bBOINCConfigChecked) {
m_bBOINCConfigChecked = TRUE;
m_bBOINCStartupConfigured = IsConfigStartupBOINC();
}
if ((time(0) - m_tThreadCreateTime) > 3) {
if (m_bBOINCStartupConfigured) {
SetError(TRUE, SCRAPPERR_BOINCNOTDETECTED);
} else {
SetError(TRUE, SCRAPPERR_BOINCNOTDETECTEDSTARTUP);
}
}
}
// Some graphics applications take a really long time to display something on their
// window, during this time the window will appear to eat keyboard and mouse event
// messages and not respond to other system events. These windows are considered
// ghost windows, normally they have an outline and can be moved around and resized.
// In the graphic applications case where the borders are hidden from view, the
// window just takes on the background of the previous window which happens to be
// the black screensaver window owned by this process.
//
// Verify that their hasn't been any keyboard or mouse activity. If there has,
// we should hide the window from this process and exit out of the screensaver to
// return control back to the user as quickly as possible.
//
void CScreensaver::CheckKeyboardMouseActivity()
{
if (gspfnMyGetLastInputInfo) {
LASTINPUTINFO lii;
lii.cbSize = sizeof(LASTINPUTINFO);
gspfnMyGetLastInputInfo(&lii);
if (m_dwLastInputTimeAtStartup != lii.dwTime) {
BOINCTRACE(_T("CScreensaver::CheckKeyboardMouseActivity - Activity Detected.\n"));
SetError(TRUE, SCRAPPERR_BOINCSHUTDOWNEVENT);
SendMessage(m_Monitors[0].hWnd, WM_INTERRUPTSAVER, NULL, NULL);
}
}
}
// When running in screensaver mode the only two valid conditions for z-order
// is that either the screensaver or graphics application is the foreground
// application. If this is not true, then blow out of the screensaver.
//
void CScreensaver::CheckForNotificationWindow()
{
BOOL bForegroundWindowIsScreensaver;
HWND hwndBOINCGraphicsWindow = NULL;
HWND hwndForeWindow = NULL;
HWND hwndForeParent = NULL;
DWORD iMonitor = 0;
INTERNALMONITORINFO* pMonitorInfo = NULL;
hwndBOINCGraphicsWindow = FindWindow(BOINC_WINDOW_CLASS_NAME, NULL);
if (!hwndBOINCGraphicsWindow) {
// Graphics application does not exist. So check that one of the windows
// assigned to each monitor is the foreground window.
bForegroundWindowIsScreensaver = FALSE;
hwndForeWindow = GetForegroundWindow();
hwndForeParent = GetParent(hwndForeWindow);
for(iMonitor = 0; iMonitor < m_dwNumMonitors; iMonitor++) {
pMonitorInfo = &m_Monitors[iMonitor];
if ((pMonitorInfo->hWnd == hwndForeWindow) ||
(pMonitorInfo->hWnd == hwndForeParent))
{
bForegroundWindowIsScreensaver = TRUE;
}
}
if (!bForegroundWindowIsScreensaver) {
// This can happen because of a personal firewall notifications or some
// funky IM client that thinks it has to notify the user even when in
// screensaver mode.
BOINCTRACE(_T("CScreensaver::CheckForNotificationWindow - Unknown window detected\n"));
SetError(TRUE, SCRAPPERR_BOINCSHUTDOWNEVENT);
SendMessage(m_Monitors[0].hWnd, WM_INTERRUPTSAVER, NULL, NULL);
}
}
}
// Make sure the screensaver window is the foreground window.
//
void CScreensaver::CheckForegroundWindow()
{
HWND hwndBOINCGraphicsWindow = NULL;
HWND hwndForeWindow = NULL;
HWND hwndForeParent = NULL;
DWORD iMonitor = 0;
INTERNALMONITORINFO* pMonitorInfo = NULL;
hwndBOINCGraphicsWindow = FindWindow(BOINC_WINDOW_CLASS_NAME, NULL);
if (hwndBOINCGraphicsWindow) {
// Graphics Application.
hwndForeWindow = GetForegroundWindow();
// If the graphics application is not the top most window try and force it
// to the top.
if (hwndForeWindow != hwndBOINCGraphicsWindow) {
BOINCTRACE(_T("CScreensaver::CheckForegroundWindow - Graphics Window Detected but NOT the foreground window, bringing window to foreground.\n"));
SetForegroundWindow(hwndBOINCGraphicsWindow);
hwndForeWindow = GetForegroundWindow();
if (hwndForeWindow != hwndBOINCGraphicsWindow) {
BOINCTRACE(_T("CScreensaver::CheckForegroundWindow - Graphics Window Detected but NOT the foreground window, bringing window to foreground. (Final Try)\n"));
// This may be needed on Windows 2000 or better machines
if (gspfnMyBroadcastSystemMessage) {
DWORD dwComponents = BSM_APPLICATIONS;
gspfnMyBroadcastSystemMessage(
BSF_ALLOWSFW,
&dwComponents,
WM_BOINCSFW,
NULL,
NULL
);
}
}
}
}
}
// Register and create the appropriate window(s)
//
HRESULT CScreensaver::CreateSaverWindow() {
// Register an appropriate window class for the primary display
WNDCLASS cls;
cls.hCursor = LoadCursor(NULL, IDC_ARROW);
cls.hIcon = LoadIcon(m_hInstance, MAKEINTRESOURCE(IDI_MAIN_ICON));
cls.lpszMenuName = NULL;
cls.lpszClassName = _T("BOINCPrimarySaverWndClass");
cls.hbrBackground = (HBRUSH) GetStockObject(BLACK_BRUSH);
cls.hInstance = m_hInstance;
cls.style = CS_VREDRAW|CS_HREDRAW;
cls.lpfnWndProc = SaverProcStub;
cls.cbWndExtra = 0;
cls.cbClsExtra = 0;
RegisterClass(&cls);
// Register an appropriate window class for the secondary display(s)
WNDCLASS cls2;
cls2.hCursor = LoadCursor(NULL, IDC_ARROW);
cls2.hIcon = LoadIcon(m_hInstance, MAKEINTRESOURCE(IDI_MAIN_ICON));
cls2.lpszMenuName = NULL;
cls2.lpszClassName = _T("BOINCGenericSaverWndClass");
cls2.hbrBackground = (HBRUSH) GetStockObject(BLACK_BRUSH);
cls2.hInstance = m_hInstance;
cls2.style = CS_VREDRAW|CS_HREDRAW;
cls2.lpfnWndProc = SaverProcStub;
cls2.cbWndExtra = 0;
cls2.cbClsExtra = 0;
RegisterClass(&cls2);
// Create the window
RECT rc;
DWORD dwStyle;
switch (m_SaverMode) {
case sm_preview:
GetClientRect(m_hWndParent, &rc);
dwStyle = WS_VISIBLE | WS_CHILD;
AdjustWindowRect(&rc, dwStyle, FALSE);
m_hWnd = CreateWindow(_T("BOINCPrimarySaverWndClass"),
m_strWindowTitle, dwStyle, rc.left, rc.top, rc.right-rc.left,
rc.bottom-rc.top, m_hWndParent, NULL, m_hInstance, this
);
m_Monitors[0].hWnd = m_hWnd;
GetClientRect(m_hWnd, &m_rcRenderTotal);
GetClientRect(m_hWnd, &m_rcRenderCurDevice);
break;
case sm_test:
rc.left = rc.top = 50;
rc.right = rc.left+600;
rc.bottom = rc.top+400;
dwStyle = WS_VISIBLE | WS_OVERLAPPED | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU;
AdjustWindowRect(&rc, dwStyle, FALSE);
m_hWnd = CreateWindow(_T("BOINCPrimarySaverWndClass"),
m_strWindowTitle, dwStyle, rc.left, rc.top, rc.right-rc.left,
rc.bottom-rc.top, NULL, NULL, m_hInstance, this
);
m_Monitors[0].hWnd = m_hWnd;
GetClientRect(m_hWnd, &m_rcRenderTotal);
GetClientRect(m_hWnd, &m_rcRenderCurDevice);
SetTimer(m_hWnd, 2, 60000, NULL);
break;
case sm_full:
dwStyle = WS_VISIBLE | WS_POPUP;
m_hWnd = NULL;
for(DWORD iMonitor = 0; iMonitor < m_dwNumMonitors; iMonitor++) {
INTERNALMONITORINFO* pMonitorInfo;
pMonitorInfo = &m_Monitors[iMonitor];
if (pMonitorInfo->hWnd == NULL) {
if (pMonitorInfo->hMonitor == NULL)
continue;
rc = pMonitorInfo->rcScreen;
if (0 == iMonitor) {
pMonitorInfo->hWnd = CreateWindowEx(NULL, _T("BOINCPrimarySaverWndClass"),
m_strWindowTitle, dwStyle, rc.left, rc.top, rc.right - rc.left,
rc.bottom - rc.top, NULL, NULL, m_hInstance, this);
} else {
pMonitorInfo->hWnd = CreateWindowEx(NULL, _T("BOINCGenericSaverWndClass"),
m_strWindowTitle, dwStyle, rc.left, rc.top, rc.right - rc.left,
rc.bottom - rc.top, NULL, NULL, m_hInstance, this);
}
if (pMonitorInfo->hWnd == NULL) {
return E_FAIL;
}
if (m_hWnd == NULL) {
m_hWnd = pMonitorInfo->hWnd;
}
SetTimer(pMonitorInfo->hWnd, 2, 250, NULL);
}
}
}
if (m_hWnd == NULL) {
return E_FAIL;
}
return S_OK;
}
// Run the screensaver graphics - may be preview, test or full-on mode
//
HRESULT CScreensaver::DoSaver() {
// Flag as screensaver running if in full on mode
if (m_SaverMode == sm_full) {
BOOL bUnused;
SystemParametersInfo(SPI_SCREENSAVERRUNNING, TRUE, &bUnused, 0);
}
// Message pump
BOOL bGotMsg;
MSG msg;
msg.message = WM_NULL;
while (msg.message != WM_QUIT) {
bGotMsg = PeekMessage(&msg, NULL, 0, 0, PM_REMOVE);
if (bGotMsg) {
TranslateMessage(&msg);
DispatchMessage(&msg);
} else {
Sleep(10);
}
}
return S_OK;
}
VOID CScreensaver::DoConfig() {
DialogBox(NULL, MAKEINTRESOURCE(DLG_CONFIG), m_hWndParent, ConfigureDialogProcStub);
}
// Handle window messages for main screensaver windows.
//
LRESULT CScreensaver::SaverProc(
HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam
) {
DWORD dwMonitor = 0;
#ifdef _DEBUG
for(DWORD iIndex = 0; iIndex < m_dwNumMonitors; iIndex++) {
if (hWnd == m_Monitors[iIndex].hWnd ) {
dwMonitor = iIndex;
}
}
#endif
BOINCTRACE(_T("CScreensaver::SaverProc [%d] hWnd '%d' uMsg '%X' wParam '%d' lParam '%d'\n"), dwMonitor, hWnd, uMsg, wParam, lParam);
switch (uMsg) {
case WM_TIMER:
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_TIMER\n"));
switch (wParam) {
case 1:
// Initial idle time is done, proceed with initialization.
m_bWaitForInputIdle = FALSE;
KillTimer(hWnd, 1);
return 0;
break;
case 2:
// Create a screen saver window on the primary display if
// the boinc client crashes
CreateSaverWindow();
// Update the position of the box every second so that it
// does not end up off the visible area of the screen.
UpdateErrorBox();
return 0;
break;
}
break;
case WM_PAINT:
{
BOOL bErrorMode;
HRESULT hrError;
TCHAR szError[400];
GetError(bErrorMode, hrError, szError, sizeof(szError)/sizeof(TCHAR));
// Show error message, if there is one
PAINTSTRUCT ps;
BeginPaint(hWnd, &ps);
// In preview mode, just fill
// the preview window with black, and the BOINC icon.
if (!bErrorMode && m_SaverMode == sm_preview) {
RECT rc;
GetClientRect(hWnd,&rc);
FillRect(ps.hdc, &rc, (HBRUSH)GetStockObject(BLACK_BRUSH));
DrawIcon(ps.hdc, (rc.right / 2) - 16, (rc.bottom / 2) - 16,
LoadIcon(m_hInstance, MAKEINTRESOURCE(IDI_MAIN_ICON)));
} else {
DoPaint(hWnd, ps.hdc, &ps);
}
EndPaint(hWnd, &ps);
}
return 0;
break;
case WM_MOUSEMOVE:
if (m_SaverMode != sm_test) {
static INT xPrev = -1;
static INT yPrev = -1;
INT xCur = GET_X_LPARAM(lParam);
INT yCur = GET_Y_LPARAM(lParam);
if (xCur != xPrev || yCur != yPrev) {
xPrev = xCur;
yPrev = yCur;
m_dwSaverMouseMoveCount++;
if (m_dwSaverMouseMoveCount > 5) {
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_MOUSEMOVE and time to InterruptSaver()\n"));
InterruptSaver();
}
}
}
return 0;
break;
case WM_KEYDOWN:
case WM_LBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_MBUTTONDOWN:
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_KEYDOWN | WM_LBUTTONDOWN | WM_RBUTTONDOWN | WM_MBUTTONDOWN\n"));
if (m_SaverMode != sm_test) {
InterruptSaver();
}
return 0;
break;
case WM_CLOSE:
case WM_DESTROY:
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_CLOSE or WM_DESTROY\n"));
if (m_SaverMode == sm_preview || m_SaverMode == sm_test) {
ShutdownSaver();
}
return 0;
break;
case WM_SYSCOMMAND:
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_SYSCOMMAND\n"));
if (m_SaverMode == sm_full) {
switch (wParam) {
case SC_NEXTWINDOW:
case SC_PREVWINDOW:
case SC_SCREENSAVE:
case SC_CLOSE:
return 0;
}
}
break;
case WM_SETCURSOR:
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_SETCURSOR\n"));
if (m_SaverMode == sm_full && !m_bCheckingSaverPassword) {
// Hide cursor
SetCursor(NULL);
return TRUE;
}
break;
case WM_POWERBROADCAST:
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_POWERBROADCAST\n"));
if (wParam == PBT_APMQUERYSUSPEND && gspfnMyVerifyPwdProc == NULL)
InterruptSaver();
break;
}
if (WM_SETTIMER == uMsg) {
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_SETTIMER\n"));
// All initialization messages have gone through. Allow
// 500ms of idle time, then proceed with initialization.
SetTimer(hWnd, 1, 500, NULL);
} else if (WM_INTERRUPTSAVER == uMsg) {
BOINCTRACE(_T("CScreensaver::SaverProc Received WM_INTERRUPTSAVER\n"));
if (hWnd == m_Monitors[0].hWnd) {
InterruptSaver();
}
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
INT_PTR CScreensaver::ConfigureDialogProc(HWND hwnd,UINT msg,WPARAM wParam,LPARAM UNUSED(lParam)) {
DWORD screen_blank=0, blank_time=0;
char buf[256];
int retval;
switch (msg) {
case WM_INITDIALOG:
// make sure you check return value of registry queries
// in case the item in question doesn't happen to exist.
retval = UtilGetRegKey(REG_BLANK_NAME, screen_blank);
if (retval < 0) {
screen_blank=0;
}
CheckDlgButton(hwnd, IDC_BLANK, screen_blank);
retval = UtilGetRegKey(REG_BLANK_TIME, blank_time);
if (retval < 0) { blank_time=0; }
_ltot(blank_time, buf, 10);
SetDlgItemText(hwnd, IDC_BLANK_TIME, buf);
return TRUE;
case WM_COMMAND:
int id=LOWORD(wParam);
if (id==IDOK) {
screen_blank = (IsDlgButtonChecked(hwnd, IDC_BLANK) == BST_CHECKED);
UtilSetRegKey(REG_BLANK_NAME, screen_blank);
GetDlgItemText(hwnd, IDC_BLANK_TIME, buf, 256);
blank_time = atoi(buf);
UtilSetRegKey(REG_BLANK_TIME, blank_time);
}
if (id == IDOK || id == IDCANCEL) {
EndDialog(hwnd, id);
}
break;
}
return FALSE;
}
// This function forwards all window messages to SaverProc, which has
// access to the "this" pointer.
//
LRESULT CALLBACK CScreensaver::SaverProcStub(
HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam
) {
return gspScreensaver->SaverProc(hWnd, uMsg, wParam, lParam);
}
INT_PTR CALLBACK CScreensaver::ConfigureDialogProcStub(
HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam
) {
return gspScreensaver->ConfigureDialogProc(hwndDlg, uMsg, wParam, lParam);
}
VOID CScreensaver::ShutdownSaver() {
// Unflag screensaver running if in full on mode
if (m_SaverMode == sm_full) {
BOOL bUnused;
SystemParametersInfo(SPI_SCREENSAVERRUNNING, FALSE, &bUnused, 0);
}
// Kill the currently executing graphics application
terminate_screensaver(m_hGraphicsApplication, &m_running_result);
// Post message to drop out of message loop
// This can be called from the data management thread, so specifically
// lookup and post to the primary window instead of calling PostQuitMessage
// since PostQuitMessage posts to the current threads message pump if it
// exists.
if (m_Monitors[0].hWnd) {
PostMessage(m_Monitors[0].hWnd, WM_QUIT, 0, 0);
}
}
// A message was received (mouse move, keydown, etc.) that may mean
// the screen saver should show the password dialog and/or shut down.
//
VOID CScreensaver::InterruptSaver() {
BOOL bPasswordOkay = FALSE;
BOINCTRACE(_T("CScreensaver::InterruptSaver Function Begin\n"));
if (m_SaverMode == sm_test || m_SaverMode == sm_full && !m_bCheckingSaverPassword) {
if (m_bIs9x && m_SaverMode == sm_full) {
// If no VerifyPassword function, then no password is set
// or we're not on 9x.
if (gspfnMyVerifyPwdProc) {
BOINCTRACE(_T("CScreensaver::InterruptSaver Win9x Detected and Password Configured\n"));
m_bCheckingSaverPassword = TRUE;
BOINCTRACE(_T("CScreensaver::InterruptSaver Calling VerifyScreenSavePwd\n"));
bPasswordOkay = gspfnMyVerifyPwdProc(m_hWnd);
BOINCTRACE(_T("CScreensaver::InterruptSaver Finished\n"));
m_bCheckingSaverPassword = FALSE;
if (!bPasswordOkay) {
// Back to screen saving...
BOINCTRACE(_T("CScreensaver::InterruptSaver Incorrect Password Given, Resetting m_dwSaverMouseMoveCount\n"));
SetCursor(NULL);
m_dwSaverMouseMoveCount = 0;
return;
}
}
}
ShutdownSaver();
} else {
if (m_bIs9x && m_SaverMode == sm_full && m_bCheckingSaverPassword) {
// Win9x sucks so bad the darn password dialog can get stuck behind the
// screensaver window. Which leaves the screensaver in a state where
// you have to reboot the machine.
HWND hwndPassword = FindWindow(_T("#32770"), _T("Windows Screen Saver"));
HWND hwndForeWindow = GetForegroundWindow();
if (hwndPassword) {
BOINCTRACE(_T("CScreensaver::InterruptSaver Password Dialog Detected\n"));
if (hwndPassword != hwndForeWindow) {
BOINCTRACE(_T("CScreensaver::InterruptSaver Password Dialog is NOT the foreground window, bringing to foreground\n"));
SetForegroundWindow(hwndPassword);
}
}
}
}
BOINCTRACE(_T("CScreensaver::InterruptSaver Function End\n"));
}
// Update the box that shows the error message
//
VOID CScreensaver::UpdateErrorBox() {
INTERNALMONITORINFO* pMonitorInfo;
HWND hwnd;
RECT rcBounds;
static DWORD dwTimeLast = 0;
DWORD dwTimeNow;
FLOAT fTimeDelta;
// Update timing to determine how much to move error box
if (dwTimeLast == 0) {
dwTimeLast = timeGetTime();
}
dwTimeNow = timeGetTime();
fTimeDelta = (FLOAT)(dwTimeNow - dwTimeLast) / 10000.0f;
dwTimeLast = dwTimeNow;
for(DWORD iMonitor = 0; iMonitor < m_dwNumMonitors; iMonitor++) {
pMonitorInfo = &m_Monitors[iMonitor];
hwnd = pMonitorInfo->hWnd;
if (hwnd == NULL)
continue;
if (m_SaverMode == sm_full) {
rcBounds = pMonitorInfo->rcScreen;
ScreenToClient(hwnd, (POINT*)&rcBounds.left);
ScreenToClient(hwnd, (POINT*)&rcBounds.right);
} else {
rcBounds = m_rcRenderTotal;
}
if (pMonitorInfo->widthError == 0) {
if (m_SaverMode == sm_preview) {
pMonitorInfo->widthError = (float) (rcBounds.right - rcBounds.left);
pMonitorInfo->heightError = (float) (rcBounds.bottom - rcBounds.top);
pMonitorInfo->xError = 0.0f;
pMonitorInfo->yError = 0.0f;
pMonitorInfo->xVelError = 0.0f;
pMonitorInfo->yVelError = 0.0f;
InvalidateRect(hwnd, NULL, FALSE); // Invalidate the hwnd so it gets drawn
UpdateWindow(hwnd);
} else {
pMonitorInfo->widthError = 454;
pMonitorInfo->heightError = 320;
pMonitorInfo->xError = (rcBounds.right + rcBounds.left - pMonitorInfo->widthError) / 2.0f;
pMonitorInfo->yError = (rcBounds.bottom + rcBounds.top - pMonitorInfo->heightError) / 2.0f;
pMonitorInfo->xVelError = (rcBounds.right - rcBounds.left) / 10.0f;
pMonitorInfo->yVelError = (rcBounds.bottom - rcBounds.top) / 20.0f;
}
} else {
if (m_SaverMode != sm_preview) {
RECT rcOld;
RECT rcNew;
SetRect(&rcOld, (INT)pMonitorInfo->xError, (INT)pMonitorInfo->yError,
(INT)(pMonitorInfo->xError + pMonitorInfo->widthError),
(INT)(pMonitorInfo->yError + pMonitorInfo->heightError));
// Update rect velocity
if ((pMonitorInfo->xError + pMonitorInfo->xVelError * fTimeDelta +
pMonitorInfo->widthError > rcBounds.right && pMonitorInfo->xVelError > 0.0f) ||
(pMonitorInfo->xError + pMonitorInfo->xVelError * fTimeDelta <
rcBounds.left && pMonitorInfo->xVelError < 0.0f)
) {
pMonitorInfo->xVelError = -pMonitorInfo->xVelError;
}
if ((pMonitorInfo->yError + pMonitorInfo->yVelError * fTimeDelta +
pMonitorInfo->heightError > rcBounds.bottom && pMonitorInfo->yVelError > 0.0f) ||
(pMonitorInfo->yError + pMonitorInfo->yVelError * fTimeDelta <
rcBounds.top && pMonitorInfo->yVelError < 0.0f)
) {
pMonitorInfo->yVelError = -pMonitorInfo->yVelError;
}
// Update rect position
pMonitorInfo->xError += pMonitorInfo->xVelError * fTimeDelta;
pMonitorInfo->yError += pMonitorInfo->yVelError * fTimeDelta;
SetRect(&rcNew, (INT)pMonitorInfo->xError, (INT)pMonitorInfo->yError,
(INT)(pMonitorInfo->xError + pMonitorInfo->widthError),
(INT)(pMonitorInfo->yError + pMonitorInfo->heightError));
if ((dwTimeNow - pMonitorInfo->dwTimeLastUpdate) > 1000)
{
pMonitorInfo->dwTimeLastUpdate = dwTimeNow;
InvalidateRect(hwnd, NULL, TRUE);
UpdateWindow(hwnd);
}
}
}
}
}
VOID CScreensaver::DoPaint(HWND hwnd, HDC hdc, LPPAINTSTRUCT lpps) {
DWORD iMonitor = 0;
INTERNALMONITORINFO* pMonitorInfo = NULL;
HMONITOR hMonitor = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
for(iMonitor = 0; iMonitor < m_dwNumMonitors; iMonitor++) {
pMonitorInfo = &m_Monitors[iMonitor];
if (pMonitorInfo->hMonitor == hMonitor)
break;
}
if (iMonitor == m_dwNumMonitors) {
return;
}
// Retrieve the latest piece of error information
BOOL bErrorMode;
HRESULT hrError;
TCHAR szError[400];
GetError(bErrorMode, hrError, szError, sizeof(szError)/sizeof(TCHAR));
// Start drawing the goods
RECT rc;
RECT rc2;
RECT rcOrginal;
int iTextHeight;
static HBRUSH hbrushBlack = (HBRUSH)GetStockObject(BLACK_BRUSH);
static HBRUSH hbrushRed = (HBRUSH)CreateSolidBrush(RGB(255,0,0));
static HBITMAP hbmp = LoadBitmap(m_hInstance, MAKEINTRESOURCE(IDB_BOINCSPLAT));
// Start off with a black screen and then draw on top of it.
FillRect(hdc, &lpps->rcPaint, hbrushBlack);
// If the screensaver has switched to a blanked state or not in an error mode,
// we should exit here so the screen has been erased to black.
if (!bErrorMode) {
return;
}
SetRect(&rc, (INT)pMonitorInfo->xError, (INT)pMonitorInfo->yError,
(INT)(pMonitorInfo->xError + pMonitorInfo->widthError),
(INT)(pMonitorInfo->yError + pMonitorInfo->heightError)
);
// This fill rect is useful when testing
//FillRect(hdc, &rc, hbrushRed);
rcOrginal = rc;
// Draw the bitmap rectangle and copy the bitmap into
// it. the bitmap is centered in the rectangle by adding 2
// to the left and top coordinates of the bitmap rectangle,
// and subtracting 4 from the right and bottom coordinates.
BITMAP bm;
GetObject(hbmp, sizeof(BITMAP), (LPSTR)&bm);
long left = rc.left + (pMonitorInfo->widthError - 4 - bm.bmWidth)/2;
long top = rc.top + 2;
DrawTransparentBitmap(hdc, hbmp, left, top, RGB(255, 0, 255));
// Draw text in the center of the frame
SetBkColor(hdc, RGB(0,0,0)); // Black
SetTextColor(hdc, RGB(255,255,255)); // Red
// Set font
HFONT hf;
hf = CreateFont(0, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, 0, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_SWISS, "Arial Narrow");
if(hf)
{
SelectObject(hdc, hf);
}
// Try using the "Arial Narrow" font, if that fails use whatever
// the system default font is. Something is better than nothing.
rc2 = rc;
iTextHeight = DrawText(hdc, szError, -1, &rc, DT_CENTER | DT_CALCRECT);
rc = rc2;
rc2.top += bm.bmHeight+20;
DrawText(hdc, szError, -1, &rc2, DT_CENTER);
if(hf)
{
DeleteObject(hf);
}
}
// Draws a bitmap on the screen with a transparent background.
// Code orginally from Microsoft Knowledge Base Article - 79212
//
void CScreensaver::DrawTransparentBitmap(
HDC hdc, HBITMAP hBitmap, LONG xStart, LONG yStart,
COLORREF cTransparentColor
){
BITMAP bm;
COLORREF cColor;
HBITMAP bmAndBack, bmAndObject, bmAndMem, bmSave;
HBITMAP bmBackOld, bmObjectOld, bmMemOld, bmSaveOld;
HDC hdcMem, hdcBack, hdcObject, hdcTemp, hdcSave;
POINT ptSize;
hdcTemp = CreateCompatibleDC(hdc);
SelectObject(hdcTemp, hBitmap); // Select the bitmap
GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&bm);
ptSize.x = bm.bmWidth; // Get width of bitmap
ptSize.y = bm.bmHeight; // Get height of bitmap
DPtoLP(hdcTemp, &ptSize, 1); // Convert from device
// to logical points
// Create some DCs to hold temporary data.
hdcBack = CreateCompatibleDC(hdc);
hdcObject = CreateCompatibleDC(hdc);
hdcMem = CreateCompatibleDC(hdc);
hdcSave = CreateCompatibleDC(hdc);
// Create a bitmap for each DC. DCs are required for a number of
// GDI functions.
// Monochrome DC
bmAndBack = CreateBitmap(ptSize.x, ptSize.y, 1, 1, NULL);
// Monochrome DC
bmAndObject = CreateBitmap(ptSize.x, ptSize.y, 1, 1, NULL);
bmAndMem = CreateCompatibleBitmap(hdc, ptSize.x, ptSize.y);
bmSave = CreateCompatibleBitmap(hdc, ptSize.x, ptSize.y);
// Each DC must select a bitmap object to store pixel data.
bmBackOld = (HBITMAP)SelectObject(hdcBack, bmAndBack);
bmObjectOld = (HBITMAP)SelectObject(hdcObject, bmAndObject);
bmMemOld = (HBITMAP)SelectObject(hdcMem, bmAndMem);
bmSaveOld = (HBITMAP)SelectObject(hdcSave, bmSave);
// Set proper mapping mode.
SetMapMode(hdcTemp, GetMapMode(hdc));
// Save the bitmap sent here, because it will be overwritten.
BitBlt(hdcSave, 0, 0, ptSize.x, ptSize.y, hdcTemp, 0, 0, SRCCOPY);
// Set the background color of the source DC to the color.
// contained in the parts of the bitmap that should be transparent
cColor = SetBkColor(hdcTemp, cTransparentColor);
// Create the object mask for the bitmap by performing a BitBlt
// from the source bitmap to a monochrome bitmap.
BitBlt(hdcObject, 0, 0, ptSize.x, ptSize.y, hdcTemp, 0, 0, SRCCOPY);
// Set the background color of the source DC back to the original
// color.
SetBkColor(hdcTemp, cColor);
// Create the inverse of the object mask.
BitBlt(hdcBack, 0, 0, ptSize.x, ptSize.y, hdcObject, 0, 0, NOTSRCCOPY);
// Copy the background of the main DC to the destination.
BitBlt(hdcMem, 0, 0, ptSize.x, ptSize.y, hdc, xStart, yStart, SRCCOPY);
// Mask out the places where the bitmap will be placed.
BitBlt(hdcMem, 0, 0, ptSize.x, ptSize.y, hdcObject, 0, 0, SRCAND);
// Mask out the transparent colored pixels on the bitmap.
BitBlt(hdcTemp, 0, 0, ptSize.x, ptSize.y, hdcBack, 0, 0, SRCAND);
// XOR the bitmap with the background on the destination DC.
BitBlt(hdcMem, 0, 0, ptSize.x, ptSize.y, hdcTemp, 0, 0, SRCPAINT);
// Copy the destination to the screen.
BitBlt(hdc, xStart, yStart, ptSize.x, ptSize.y, hdcMem, 0, 0, SRCCOPY);
// Place the original bitmap back into the bitmap sent here.
BitBlt(hdcTemp, 0, 0, ptSize.x, ptSize.y, hdcSave, 0, 0, SRCCOPY);
// Delete the memory bitmaps.
DeleteObject(SelectObject(hdcBack, bmBackOld));
DeleteObject(SelectObject(hdcObject, bmObjectOld));
DeleteObject(SelectObject(hdcMem, bmMemOld));
DeleteObject(SelectObject(hdcSave, bmSaveOld));
// Delete the memory DCs.
DeleteDC(hdcMem);
DeleteDC(hdcBack);
DeleteDC(hdcObject);
DeleteDC(hdcSave);
DeleteDC(hdcTemp);
}
VOID CScreensaver::ChangePassword() {
// Load the password change DLL
HINSTANCE mpr = LoadLibrary(_T("MPR.DLL"));
if (mpr != NULL) {
// Grab the password change function from it
typedef DWORD (PASCAL *PWCHGPROC)(LPCSTR, HWND, DWORD, LPVOID);
PWCHGPROC pwd = (PWCHGPROC)GetProcAddress(mpr, "PwdChangePasswordA");
// Do the password change
if (pwd != NULL) {
pwd("SCRSAVE", m_hWndParent, 0, NULL);
}
// Free the library
FreeLibrary(mpr);
}
}
const char *BOINC_RCSID_116268c72f = "$Id$";
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