From 7f102493777cf729a3e321a9826983f234f5779f Mon Sep 17 00:00:00 2001 From: Charlie Fenton Date: Tue, 19 Feb 2008 13:26:26 +0000 Subject: [PATCH] MAC SCR: Further changes and cleanup of new Mac screensaver svn path=/trunk/boinc/; revision=14759 --- clientscr/Mac_Saver_Module.h | 20 ++- clientscr/Mac_Saver_ModuleView.h | 8 +- clientscr/Mac_Saver_ModuleView.m | 10 +- clientscr/mac_saver_module.cpp | 254 ++++++++++--------------------- clientscr/screensaver.cpp | 13 +- 5 files changed, 102 insertions(+), 203 deletions(-) diff --git a/clientscr/Mac_Saver_Module.h b/clientscr/Mac_Saver_Module.h index ae4fb46e5a..ef3cd69810 100644 --- a/clientscr/Mac_Saver_Module.h +++ b/clientscr/Mac_Saver_Module.h @@ -33,8 +33,8 @@ extern "C" { #endif int initBOINCSaver(Boolean ispreview); -int drawGraphics(char **theMessage); -void drawPreview(GrafPtr aPort); +int getSSMessage(char **theMessage); +void drawPreview(CGContextRef myContext); void closeBOINCSaver(void); void print_to_log_file(const char *format, ...); void strip_cr(char *buf); @@ -68,9 +68,8 @@ protected: OSErr GetpathToBOINCManagerApp(char* path, int maxLen); bool SetError( bool bErrorMode, unsigned int hrError ); void UpdateProgressText(unsigned int hrError); - void setBannerText(const char *msg, GrafPtr aPort); - void updateBannerText(char *msg, GrafPtr aPort); - void drawBanner(GrafPtr aPort); + void setSSMessageText(const char *msg); + void updateSSMessageText(char *msg); void strip_cr(char *buf); char m_gfx_Switcher_Path[MAXPATHLEN]; bool m_bErrorMode; // Whether to display an error @@ -81,6 +80,8 @@ protected: int m_dwBlankScreen; time_t m_dwBlankTime; int m_statusUpdateCounter; + int m_iLastResultShown; + int m_tLastResultChangeCounter; bool m_StatusMessageUpdated; // @@ -115,8 +116,6 @@ protected: RESULTS results; RESULT m_running_result; bool m_updating_results; - int m_iLastResultShown; - time_t m_tLastResultChangeTime; bool m_bResetCoreState; bool m_QuitDataManagementProc; @@ -128,13 +127,12 @@ protected: // protected: char m_MsgBuf[2048]; - char m_BannerText[2048]; - int m_BannerWidth; + char m_MessageText[2048]; char* m_CurrentBannerMessage; char* m_BrandText; public: - int drawGraphics(char **theMessage); - void drawPreview(GrafPtr aPort); + int getSSMessage(char **theMessage); + void drawPreview(CGContextRef myContext); void ShutdownSaver(); protected: diff --git a/clientscr/Mac_Saver_ModuleView.h b/clientscr/Mac_Saver_ModuleView.h index 7b30380035..74ce0e6284 100644 --- a/clientscr/Mac_Saver_ModuleView.h +++ b/clientscr/Mac_Saver_ModuleView.h @@ -26,8 +26,6 @@ @interface BOINC_Saver_ModuleView : ScreenSaverView { - NSQuickDrawView * mainQDView; - NSQuickDrawView * previewQDView; NSString *mBundleID; // our bundle ID IBOutlet id mConfigureSheet; // our configuration sheet @@ -43,10 +41,8 @@ @end -void setFrame(Rect *frame); int initBOINCSaver(Boolean ispreview); -int drawGraphics(char **theMessage); -void drawPreview(GrafPtr aPort); +int getSSMessage(char **theMessage); +void drawPreview(CGContextRef myContext); void closeBOINCSaver(void); -void displayText(const unsigned char *s, GrafPtr aPort); extern void print_to_log_file(const char *format, ...); diff --git a/clientscr/Mac_Saver_ModuleView.m b/clientscr/Mac_Saver_ModuleView.m index d4be13a6d6..a3727796aa 100644 --- a/clientscr/Mac_Saver_ModuleView.m +++ b/clientscr/Mac_Saver_ModuleView.m @@ -135,7 +135,7 @@ int signof(float x) { kFontNoScriptCode, kFontNoLanguageCode, &theFontID); err = ATSUCreateStyle(&theStyle); - atsuSize = Long2Fix (24); + atsuSize = Long2Fix (20); err = ATSUSetAttributes(theStyle, 2, theTags, theSizes, theValues); } } @@ -200,7 +200,7 @@ int signof(float x) { #endif return; } - + myContext = [[NSGraphicsContext currentContext] graphicsPort]; // [myContext retain]; @@ -208,13 +208,13 @@ int signof(float x) { NSRect windowFrame = [ myWindow frame ]; if ( (windowFrame.origin.x != 0) || (windowFrame.origin.y != 0) ) { // Hide window on second display to aid in debugging - [[[ NSView focusView] window ] setLevel:kCGMinimumWindowLevel ]; +// [[[ NSView focusView] window ] setLevel:kCGMinimumWindowLevel ]; return; // We draw only to main screen } NSRect viewBounds = [self bounds]; - newFrequency = drawGraphics(&msg); + newFrequency = getSSMessage(&msg); // Clear the previous drawing area currentDrawingRect = gMovingRect; @@ -252,6 +252,7 @@ int signof(float x) { if (!isErased) { [[NSColor blackColor] set]; + // Erasing only 2 small rectangles reduces screensaver's CPU usage by about 25% imagePosition.x = (float) ((int)gCurrentPosition.x + gImageXIndent); imagePosition.y = (float) (int)gCurrentPosition.y; eraseRect.origin.y = imagePosition.y; @@ -283,6 +284,7 @@ int signof(float x) { eraseRect = currentDrawingRect; eraseRect.size.height = gTextBoxHeight; + eraseRect = NSInsetRect(eraseRect, -1, -1); NSRectFill(eraseRect); isErased = true; diff --git a/clientscr/mac_saver_module.cpp b/clientscr/mac_saver_module.cpp index 7e4120215f..1ccaf59bd0 100644 --- a/clientscr/mac_saver_module.cpp +++ b/clientscr/mac_saver_module.cpp @@ -50,11 +50,10 @@ // Flags for testing & debugging #define CREATE_LOG 1 -#define BANNER_GAP 30 /* Space between repeats of banner text */ -#define BANNERDELTA 2 /* Number of pixels to move banner each frame */ -#define BANNERFREQUENCY 30 /* Number of times per second to update text and logo */ -#define NOBANNERFREQUENCY 4 /* Times per second to call drawGraphics if no banner */ +#define TEXTLOGOFREQUENCY 30 /* Number of times per second to update moving logo with text */ +#define NOTEXTLOGOFREQUENCY 4 /* Times per second to call animateOneFrame if no moving logo with text */ #define STATUSUPDATEINTERVAL 5 /* seconds between status display updates */ +#define STATUSRESULTCHANGETIME 10 /* seconds to show status display for each task */ #define TASK_RUN_CHECK_PERIOD 5 /* Seconds between safety check that task is actually running */ enum SaverState { @@ -78,11 +77,6 @@ extern CFStringRef gPathToBundleResources; static SaverState saverState = SaverState_Idle; // int gQuitCounter = 0; -RGBColor gBrandColor = {0xFFFF, 0xFFFF, 0xFFFF}; -RGBColor gTextColor = {0xFFFF, 0xFFFF, 0xFFFF}; -RGBColor gWhiteTextColor = {0xFFFF, 0xFFFF, 0xFFFF}; -RGBColor gOrangeTextColor = {0xFFFF, 0x6262, 0x0000}; -RGBColor gGrayTextColor = {0x9999, 0x9999, 0x9999}; const char * CantLaunchCCMsg = "Unable to launch BOINC application."; const char * LaunchingCCMsg = "Launching BOINC application."; @@ -90,9 +84,9 @@ const char * ConnectingCCMsg = "Connecting to BOINC application."; const char * BOINCSuspendedMsg = "BOINC is currently suspended."; const char * BOINCNoAppsExecutingMsg = "BOINC is currently idle."; const char * BOINCNoProjectsDetectedMsg = "BOINC is not attached to any projects. Please attach to projects using the BOINC Manager."; -const char * BOINCNoGraphicAppsExecutingMsg = "Project does not support screensaver graphics: "; +const char * BOINCNoGraphicAppsExecutingMsg = "Project does not support graphics:"; const char * BOINCUnrecoverableErrorMsg = "Sorry, an unrecoverable error occurred"; -const char * BOINCTestmodeMsg = "BOINC screensaver is running, but cannot display graphics in test mode."; +const char * BOINCTestmodeMsg = "BOINC screensaver test: success."; const char * BOINCV5GFXDaemonMsg = "BOINC can't display graphics from older applications when running as a daemon."; //const char * BOINCExitedSaverMode = "BOINC is no longer in screensaver mode."; @@ -108,13 +102,13 @@ int initBOINCSaver(Boolean ispreview) { return gspScreensaver->Create(); } -int drawGraphics(char **theMessage) { - return gspScreensaver->drawGraphics(theMessage); +int getSSMessage(char **theMessage) { + return gspScreensaver->getSSMessage(theMessage); }; -void drawPreview(GrafPtr aPort) { - gspScreensaver->drawPreview(aPort); +void drawPreview(CGContextRef myContext) { + gspScreensaver->drawPreview(myContext); }; @@ -130,14 +124,14 @@ CScreensaver::CScreensaver() { m_hrError = 0; m_StatusMessageUpdated = false; // Display first status update after 5 seconds - m_statusUpdateCounter = ((STATUSUPDATEINTERVAL-5) * BANNERFREQUENCY); - + m_statusUpdateCounter = ((STATUSUPDATEINTERVAL-5) * TEXTLOGOFREQUENCY); + m_iLastResultShown = 0; + m_tLastResultChangeCounter = ((STATUSRESULTCHANGETIME-5) * TEXTLOGOFREQUENCY); saverState = SaverState_Idle; m_wasAlreadyRunning = false; m_CoreClientPID = nil; m_MsgBuf[0] = 0; - setBannerText(0, NULL); - m_BannerWidth = 0; + setSSMessageText(0); m_CurrentBannerMessage = 0; m_QuitDataManagementProc = false; m_BrandText = "BOINC"; @@ -151,7 +145,6 @@ CScreensaver::CScreensaver() { int CScreensaver::Create() { - int newFrequency = 15; ProcessSerialNumber psn; ProcessInfoRec pInfo; OSStatus err; @@ -190,16 +183,18 @@ int CScreensaver::Create() { err = initBOINCApp(); + CGDisplayHideCursor(kCGNullDirectDisplay); + if (saverState == SaverState_LaunchingCoreClient) { SetError(FALSE, 0); m_QuitDataManagementProc = false; - if (rpc == NULL) + if (rpc == NULL) { rpc = new RPC_CLIENT; - newFrequency = NOBANNERFREQUENCY; + } } } - return newFrequency; + return TEXTLOGOFREQUENCY; } @@ -217,13 +212,9 @@ OSStatus CScreensaver::initBOINCApp() { switch(brandId) { case 1: m_BrandText = "GridRepublic"; - gBrandColor = gOrangeTextColor; // Orange - gTextColor = gGrayTextColor; // Gray - break; + break; default: m_BrandText = "BOINC"; - gBrandColor = gWhiteTextColor; // White - gTextColor = gWhiteTextColor; // White break; } @@ -283,17 +274,13 @@ OSStatus CScreensaver::initBOINCApp() { // Returns new desired Animation Frequency (per second) or 0 for no change -int CScreensaver::drawGraphics(char **theMessage) { - CGrafPtr aPort = NULL; -// CGrafPtr savePort; - // GDHandle saveGDH; - int newFrequency = 15; +int CScreensaver::getSSMessage(char **theMessage) { + int newFrequency = TEXTLOGOFREQUENCY; pid_t myPid; OSStatus err; - ObscureCursor(); - m_statusUpdateCounter++; + m_tLastResultChangeCounter++; switch (saverState) { case SaverState_RelaunchCoreClient: @@ -302,9 +289,9 @@ int CScreensaver::drawGraphics(char **theMessage) { case SaverState_LaunchingCoreClient: if (m_wasAlreadyRunning) - setBannerText(ConnectingCCMsg, aPort); + setSSMessageText(ConnectingCCMsg); else - setBannerText(LaunchingCCMsg, aPort); + setSSMessageText(LaunchingCCMsg); myPid = FindProcessPID(NULL, m_CoreClientPID); if (myPid) { @@ -324,7 +311,7 @@ int CScreensaver::drawGraphics(char **theMessage) { case SaverState_CoreClientRunning: // RPC called in DataManagementProc() - setBannerText(ConnectingCCMsg, aPort); + setSSMessageText(ConnectingCCMsg); if (! m_bResetCoreState) { saverState = SaverState_ConnectedToCoreClient; } @@ -336,36 +323,36 @@ int CScreensaver::drawGraphics(char **theMessage) { break; // No status response yet from DataManagementProc case SCRAPPERR_SCREENSAVERBLANKED: default: - setBannerText(0, aPort); // No text message + setSSMessageText(0); // No text message break; case SCRAPPERR_BOINCSUSPENDED: - setBannerText(BOINCSuspendedMsg, aPort); + setSSMessageText(BOINCSuspendedMsg); break; case SCRAPPERR_BOINCNOAPPSEXECUTING: - setBannerText(BOINCNoAppsExecutingMsg, aPort); + setSSMessageText(BOINCNoAppsExecutingMsg); break; case SCRAPPERR_BOINCNOPROJECTSDETECTED: - setBannerText(BOINCNoProjectsDetectedMsg, aPort); + setSSMessageText(BOINCNoProjectsDetectedMsg); break; case SCRAPPERR_SCREENSAVERRUNNING: #if ! ALWAYS_DISPLAY_PROGRESS_TEXT - setBannerText(0, aPort); // No text message + setSSMessageText(0); // No text message // Let the science app draw over our window break; #endif case SCRAPPERR_BOINCNOGRAPHICSAPPSEXECUTING: case SCRAPPERR_DAEMONALLOWSNOGRAPHICS: if (m_StatusMessageUpdated) { - setBannerText(m_MsgBuf, aPort); - updateBannerText(m_MsgBuf, aPort); + setSSMessageText(m_MsgBuf); + updateSSMessageText(m_MsgBuf); m_StatusMessageUpdated = false; } break; #if 0 case SCRAPPERR_QUITSCREENSAVERREQUESTED: -// setBannerText(BOINCExitedSaverMode, aPort); +// setSSMessageText(BOINCExitedSaverMode); // Wait 1 second to allow ScreenSaver engine to close us down - if (++gQuitCounter > (bannerText[0] ? BANNERFREQUENCY : NOBANNERFREQUENCY)) { + if (++gQuitCounter > (m_MessageText[0] ? TEXTLOGOFREQUENCY : NOTEXTLOGOFREQUENCY)) { closeBOINCSaver(); KillScreenSaver(); // Stop the ScreenSaver Engine } @@ -375,41 +362,33 @@ int CScreensaver::drawGraphics(char **theMessage) { break; case SaverState_ControlPanelTestMode: - setBannerText(BOINCTestmodeMsg, aPort); + setSSMessageText(BOINCTestmodeMsg); break; case SaverState_UnrecoverableError: - setBannerText(BOINCUnrecoverableErrorMsg, aPort); + setSSMessageText(BOINCUnrecoverableErrorMsg); break; case SaverState_CantLaunchCoreClient: - setBannerText(CantLaunchCCMsg, aPort); + setSSMessageText(CantLaunchCCMsg); break; case SaverState_Idle: break; // Should never get here; fixes compiler warning } // end switch (saverState) - if (m_BannerText[0]) { -#if 0 - GetGWorld(&savePort, &saveGDH); - SetPort(aPort); - drawBanner(aPort); - SetGWorld(savePort, saveGDH); -#endif - newFrequency = BANNERFREQUENCY; + if (m_MessageText[0]) { + newFrequency = TEXTLOGOFREQUENCY; } else - newFrequency = NOBANNERFREQUENCY; + newFrequency = NOTEXTLOGOFREQUENCY; - *theMessage = m_BannerText; + *theMessage = m_MessageText; return newFrequency; } -void CScreensaver::drawPreview(GrafPtr aPort) { - SetPort(aPort); - setBannerText(" BOINC", aPort); - drawBanner(aPort); +void CScreensaver::drawPreview(CGContextRef myContext) { + // For possible future use } @@ -435,7 +414,7 @@ void CScreensaver::ShutdownSaver() { rpc = NULL; } - setBannerText(0, NULL); + setSSMessageText(0); m_CoreClientPID = 0; // gQuitCounter = 0; @@ -512,13 +491,13 @@ bool CScreensaver::SetError(bool bErrorMode, unsigned int hrError) { void CScreensaver::UpdateProgressText(unsigned int hrError) { int iResultCount; int iIndex; + int iModIndex; unsigned int len; RESULT* theResult; PROJECT* pProject; - char statusBuf[256]; - double percent_done; + char statusBuf[2048]; - if ( (m_statusUpdateCounter >= (STATUSUPDATEINTERVAL * BANNERFREQUENCY) ) && !m_updating_results ) { + if ( (m_statusUpdateCounter >= (STATUSUPDATEINTERVAL * TEXTLOGOFREQUENCY) ) && !m_updating_results ) { if (! m_StatusMessageUpdated) { m_statusUpdateCounter = 0; strcpy(m_MsgBuf, hrError == SCRAPPERR_DAEMONALLOWSNOGRAPHICS ? @@ -528,20 +507,33 @@ void CScreensaver::UpdateProgressText(unsigned int hrError) { iResultCount = results.results.size(); theResult = NULL; for (iIndex = 0; iIndex < iResultCount; iIndex++) { - theResult = results.results.at(iIndex); - + // cycle through the active results starting from the last one + iModIndex = (iIndex + m_iLastResultShown+1) % iResultCount; + theResult = results.results.at(iModIndex); // The get_state rpc is time-consuming, so we assume the list of // attached projects does not change while the screensaver is active. pProject = state.lookup_project(theResult->project_url); if (pProject != NULL) { - percent_done = theResult->fraction_done * 100; - if (percent_done < 0.01) - len = sprintf(statusBuf, (" %s"), pProject->project_name.c_str()); - else // Display percent_done only after we have a valid value - len = sprintf(statusBuf, (" %s: %.2f%%"), - pProject->project_name.c_str(), percent_done); - - strlcat(m_MsgBuf, statusBuf, sizeof(m_MsgBuf)); + RESULT* pResult = state.lookup_result(pProject, results.results.at(iModIndex)->name); + if ( pResult != NULL ) { + len = snprintf(statusBuf, sizeof(statusBuf), + "\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 + ); + + strlcat(m_MsgBuf, statusBuf, sizeof(m_MsgBuf)); + if (m_tLastResultChangeCounter >= (STATUSRESULTCHANGETIME * TEXTLOGOFREQUENCY)) { + m_iLastResultShown = iModIndex; + m_tLastResultChangeCounter = 0; + } + break; + } else { + HandleRPCError(); + return; + } } else { // (pProject == NULL): re-synch with client HandleRPCError(); return; @@ -553,125 +545,35 @@ void CScreensaver::UpdateProgressText(unsigned int hrError) { } -void CScreensaver::setBannerText(const char * msg, GrafPtr aPort) { +void CScreensaver::setSSMessageText(const char * msg) { if (msg == 0) - m_BannerText[0] = 0; + m_MessageText[0] = 0; if (m_CurrentBannerMessage != msg) - updateBannerText((char *)msg, aPort); + updateSSMessageText((char *)msg); } -void CScreensaver::updateBannerText(char *msg, GrafPtr aPort) { -// CGrafPtr savePort; -// RGBColor saveBackColor; -// Rect wRect; +void CScreensaver::updateSSMessageText(char *msg) { char *p, *s; m_CurrentBannerMessage = msg; -#if 0 - if (aPort == NULL) - return; - - GetPort(&savePort); - SetPort(aPort); - - GetPortBounds(aPort, &wRect); - - GetBackColor(&saveBackColor); - BackColor ( blackColor ); - EraseRect(&wRect); - RGBBackColor(&saveBackColor); - #endif - if (msg) { -#if 0 - TextSize(24); - TextFace(bold); -#endif s = msg; - m_BannerText[0] = '\0'; + m_MessageText[0] = '\0'; do { p = strstr(s, "BOINC"); if (p == NULL) { - strcat(m_BannerText, s); + strcat(m_MessageText, s); } else { - strncat(m_BannerText, s, p - s); - strcat(m_BannerText, m_BrandText); + strncat(m_MessageText, s, p - s); + strcat(m_MessageText, m_BrandText); s = p + 5; // s = p + strlen("BOINC"); } } while (p); -#if 0 - m_BannerWidth = TextWidth(m_BannerText, 0, strlen(m_BannerText)) + BANNER_GAP; - // Round up m_BannerWidth to an integral multiple of BANNERDELTA - m_BannerWidth = ((m_BannerWidth + BANNERDELTA - 1) / BANNERDELTA) * BANNERDELTA; -#endif } - -// SetPort(savePort); - -} - - -void CScreensaver::drawBanner(GrafPtr aPort) { - CGrafPtr savePort; - GDHandle saveGDH; - RGBColor saveForeColor, saveBackColor; - short x, y; - Rect wRect; - FontInfo fInfo; - static short bannerPos; - char *p, *s; - - if (aPort == NULL) - return; - - GetGWorld(&savePort, &saveGDH); - SetPort(aPort); - - GetForeColor(&saveForeColor); - GetBackColor(&saveBackColor); - RGBForeColor(&gTextColor); - BackColor(blackColor); - GetPortBounds(aPort, &wRect); - if ( (bannerPos + m_BannerWidth) <= (wRect.left + BANNERDELTA) ) - bannerPos = wRect.left; - else - bannerPos -= BANNERDELTA; - - x = bannerPos; - y = (wRect.bottom - wRect.top) / 3 + wRect.top; - - GetFontInfo(&fInfo); - wRect.top = y - fInfo.ascent; - wRect.bottom = y + fInfo.descent; - EraseRect(&wRect); - - do { - MoveTo(x, y); - s = m_BannerText; - do { - p = strstr(s, m_BrandText); - if (p == NULL) { - DrawText(s, 0, strlen(s)); - } else { - DrawText(s, 0, p - s); - RGBForeColor(&gBrandColor); - DrawText(m_BrandText, 0, strlen(m_BrandText)); - s = p + strlen(m_BrandText); - RGBForeColor(&gTextColor); - } - } while (p); - - x+= m_BannerWidth; - } while (x < wRect.right); - - RGBForeColor(&saveForeColor); - RGBBackColor(&saveBackColor); - - SetGWorld(savePort, saveGDH); } diff --git a/clientscr/screensaver.cpp b/clientscr/screensaver.cpp index 6707066afe..a67cf333f1 100644 --- a/clientscr/screensaver.cpp +++ b/clientscr/screensaver.cpp @@ -237,7 +237,6 @@ int CScreensaver::terminate_screensaver(HANDLE& graphics_application, RESULT *wo int CScreensaver::terminate_screensaver(int& graphics_application, RESULT *worker_app) #endif { - if (graphics_application) { // V6 Graphics kill_program(graphics_application); @@ -281,6 +280,7 @@ int CScreensaver::terminate_screensaver(int& graphics_application, RESULT *worke // V5 and Older DISPLAY_INFO di; + if (worker_app == NULL) return 0; if (worker_app->name.empty()) return 0; memset(di.window_station, 0, sizeof(di.window_station)); @@ -372,8 +372,9 @@ void *CScreensaver::DataManagementProc() { if (suspend_reason != 0) { SetError(TRUE, SCRAPPERR_BOINCSUSPENDED); - if (m_hGraphicsApplication || graphics_app_result_ptr) { - terminate_screensaver(m_hGraphicsApplication, graphics_app_result_ptr); + if (m_hGraphicsApplication || previous_result_ptr) { + // use previous_result_ptr because graphics_app_result_ptr may no longer be valid + terminate_screensaver(m_hGraphicsApplication, previous_result_ptr); if (m_hGraphicsApplication == 0) { graphics_app_result_ptr = NULL; } else { @@ -383,11 +384,11 @@ void *CScreensaver::DataManagementProc() { } continue; } - + #if SIMULATE_NO_GRAPHICS /* FOR TESTING */ SetError(TRUE, SCRAPPERR_BOINCNOGRAPHICSAPPSEXECUTING); - + #else /* NORMAL OPERATION */ // Is the current graphics app's associated task still running? @@ -444,7 +445,7 @@ void *CScreensaver::DataManagementProc() { last_change_time = dtime(); } } - + // If no current graphics app, pick an active task at random and launch its graphics app if ((m_hGraphicsApplication == 0) && (graphics_app_result_ptr == NULL)) { graphics_app_result_ptr = get_random_graphics_app(results, previous_result_ptr);