//#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500) //============================================================================= // // MULTIMON // stub module that "stubs" multiple monitor APIs on pre-Memphis Win32 OSes // // By using this header your code will work unchanged on Win95, // you will get back correct values from GetSystemMetrics() for new metrics // and the new APIs will act like only one display is present. // // exactly one source must include this with COMPILE_MULTIMON_STUBS defined // //============================================================================= #ifdef __cplusplus extern "C" { /* Assume C declarations for C++ */ #endif /* __cplusplus */ // // if we are building on Win95/NT4 headers we need to declare this stuff ourselves // #ifndef SM_SAMEDISPLAYFORMAT #define SM_SAMEDISPLAYFORMAT 81 #endif #ifndef SM_CMONITORS #ifndef MONITORINFOF_PRIMARY #define SM_XVIRTUALSCREEN 76 #define SM_YVIRTUALSCREEN 77 #define SM_CXVIRTUALSCREEN 78 #define SM_CYVIRTUALSCREEN 79 #define SM_CMONITORS 80 DECLARE_HANDLE(HMONITOR); typedef struct tagMONITORINFO { DWORD cbSize; RECT rcMonitor; RECT rcWork; DWORD dwFlags; } MONITORINFO, *LPMONITORINFO; #define CCHDEVICENAME 32 #endif // SM_CMONITORS #define MONITORINFOF_PRIMARY 0x00000001 #ifndef MONITOR_DEFAULTTONULL #define MONITOR_DEFAULTTONULL 0x00000000 #endif #ifndef MONITOR_DEFAULTTOPRIMARY #define MONITOR_DEFAULTTOPRIMARY 0x00000001 #endif #ifndef MONITOR_DEFAULTTONEAREST #define MONITOR_DEFAULTTONEAREST 0x00000002 #endif typedef BOOL (CALLBACK* MONITORENUMPROC)(HMONITOR, HDC, LPRECT, LPARAM); #ifdef __cplusplus typedef struct tagMONITORINFOEX : public tagMONITORINFO { TCHAR szDevice[CCHDEVICENAME]; } MONITORINFOEX, *LPMONITORINFOEX; #else typedef struct { MONITORINFO; TCHAR szDevice[CCHDEVICENAME]; } MONITORINFOEX, *LPMONITORINFOEX; #endif #ifndef DISPLAY_DEVICE_ATTACHED_TO_DESKTOP typedef struct { DWORD cb; CHAR DeviceName[32]; CHAR DeviceString[128]; DWORD StateFlags; } DISPLAY_DEVICE; #define DISPLAY_DEVICE_ATTACHED_TO_DESKTOP 0x00000001 #define DISPLAY_DEVICE_MULTI_DRIVER 0x00000002 #define DISPLAY_DEVICE_PRIMARY_DEVICE 0x00000004 #define DISPLAY_DEVICE_MIRRORING_DRIVER 0x00000008 #endif #endif #define DISPLAY_DEVICE_VGA 0x00000010 #ifndef ENUM_CURRENT_SETTINGS #define ENUM_CURRENT_SETTINGS ((DWORD)-1) #define ENUM_REGISTRY_SETTINGS ((DWORD)-2) #endif #undef GetMonitorInfo #undef GetSystemMetrics #undef MonitorFromWindow #undef MonitorFromRect #undef MonitorFromPoint #undef EnumDisplayMonitors #undef EnumDisplayDevices // // define this to compile the stubs // otherwise you get the declarations // #ifdef COMPILE_MULTIMON_STUBS //--------------------------------------------------------------------------- // // Implement the API stubs. // //--------------------------------------------------------------------------- int (WINAPI* g_pfnGetSystemMetrics)(int); HMONITOR (WINAPI* g_pfnMonitorFromWindow)(HWND, BOOL); HMONITOR (WINAPI* g_pfnMonitorFromRect)(LPCRECT, BOOL); HMONITOR (WINAPI* g_pfnMonitorFromPoint)(POINT, BOOL); BOOL (WINAPI* g_pfnGetMonitorInfo)(HMONITOR, LPMONITORINFO); BOOL (WINAPI* g_pfnEnumDisplayMonitors)(HDC, LPCRECT, MONITORENUMPROC, LPARAM); BOOL (WINAPI *g_pfnEnumDisplayDevices)(LPVOID, int, DISPLAY_DEVICE *,DWORD); BOOL InitMultipleMonitorStubs(void) { HMODULE hUser32; static BOOL fInitDone; if (fInitDone) { return g_pfnGetMonitorInfo != NULL; } if ((hUser32 = GetModuleHandle(TEXT("USER32"))) && (*(FARPROC*)&g_pfnGetSystemMetrics = GetProcAddress(hUser32,"GetSystemMetrics")) && (*(FARPROC*)&g_pfnMonitorFromWindow = GetProcAddress(hUser32,"MonitorFromWindow")) && (*(FARPROC*)&g_pfnMonitorFromRect = GetProcAddress(hUser32,"MonitorFromRect")) && (*(FARPROC*)&g_pfnMonitorFromPoint = GetProcAddress(hUser32,"MonitorFromPoint")) && (*(FARPROC*)&g_pfnEnumDisplayMonitors = GetProcAddress(hUser32,"EnumDisplayMonitors")) && (*(FARPROC*)&g_pfnGetMonitorInfo = GetProcAddress(hUser32,"GetMonitorInfoW")) && (*(FARPROC*)&g_pfnEnumDisplayDevices = GetProcAddress(hUser32,"EnumDisplayDevicesW")) && (GetSystemMetrics(SM_CXVIRTUALSCREEN) >= GetSystemMetrics(SM_CXSCREEN)) && (GetSystemMetrics(SM_CYVIRTUALSCREEN) >= GetSystemMetrics(SM_CYSCREEN)) ) { fInitDone = TRUE; return TRUE; } else { g_pfnGetSystemMetrics = NULL; g_pfnMonitorFromWindow = NULL; g_pfnMonitorFromRect = NULL; g_pfnMonitorFromPoint = NULL; g_pfnGetMonitorInfo = NULL; g_pfnEnumDisplayMonitors = NULL; g_pfnEnumDisplayDevices = NULL; fInitDone = TRUE; return FALSE; } } //--------------------------------------------------------------------------- // // "stubbed" implementations of Monitor APIs that work with the primary // display // //--------------------------------------------------------------------------- int WINAPI xGetSystemMetrics(int nIndex) { if (InitMultipleMonitorStubs()) return g_pfnGetSystemMetrics(nIndex); switch (nIndex) { case SM_CMONITORS: case SM_SAMEDISPLAYFORMAT: return 1; case SM_XVIRTUALSCREEN: case SM_YVIRTUALSCREEN: return 0; case SM_CXVIRTUALSCREEN: nIndex = SM_CXSCREEN; break; case SM_CYVIRTUALSCREEN: nIndex = SM_CYSCREEN; break; } return GetSystemMetrics(nIndex); } #define xPRIMARY_MONITOR ((HMONITOR)0x42) HMONITOR WINAPI xMonitorFromRect(LPCRECT lprcScreenCoords, UINT uFlags) { if (InitMultipleMonitorStubs()) return g_pfnMonitorFromRect(lprcScreenCoords, uFlags); if ((uFlags & (MONITOR_DEFAULTTOPRIMARY | MONITOR_DEFAULTTONEAREST)) || ((lprcScreenCoords->right > 0) && (lprcScreenCoords->bottom > 0) && (lprcScreenCoords->left < GetSystemMetrics(SM_CXSCREEN)) && (lprcScreenCoords->top < GetSystemMetrics(SM_CYSCREEN)))) { return xPRIMARY_MONITOR; } return NULL; } HMONITOR WINAPI xMonitorFromWindow(HWND hWnd, UINT uFlags) { RECT rc; if (InitMultipleMonitorStubs()) return g_pfnMonitorFromWindow(hWnd, uFlags); if (uFlags & (MONITOR_DEFAULTTOPRIMARY | MONITOR_DEFAULTTONEAREST)) return xPRIMARY_MONITOR; if (GetWindowRect(hWnd, &rc)) return xMonitorFromRect(&rc, uFlags); return NULL; } HMONITOR WINAPI xMonitorFromPoint(POINT ptScreenCoords, UINT uFlags) { if (InitMultipleMonitorStubs()) return g_pfnMonitorFromPoint(ptScreenCoords, uFlags); if ((uFlags & (MONITOR_DEFAULTTOPRIMARY | MONITOR_DEFAULTTONEAREST)) || ((ptScreenCoords.x >= 0) && (ptScreenCoords.x < GetSystemMetrics(SM_CXSCREEN)) && (ptScreenCoords.y >= 0) && (ptScreenCoords.y < GetSystemMetrics(SM_CYSCREEN)))) { return xPRIMARY_MONITOR; } return NULL; } BOOL WINAPI xGetMonitorInfo(HMONITOR hMonitor, LPMONITORINFO lpMonitorInfo) { RECT rcWork; if (InitMultipleMonitorStubs()) return g_pfnGetMonitorInfo(hMonitor, lpMonitorInfo); if ((hMonitor == xPRIMARY_MONITOR) && lpMonitorInfo && (lpMonitorInfo->cbSize >= sizeof(MONITORINFO)) && SystemParametersInfo(SPI_GETWORKAREA, 0, &rcWork, 0)) { lpMonitorInfo->rcMonitor.left = 0; lpMonitorInfo->rcMonitor.top = 0; lpMonitorInfo->rcMonitor.right = GetSystemMetrics(SM_CXSCREEN); lpMonitorInfo->rcMonitor.bottom = GetSystemMetrics(SM_CYSCREEN); lpMonitorInfo->rcWork = rcWork; lpMonitorInfo->dwFlags = MONITORINFOF_PRIMARY; if (lpMonitorInfo->cbSize >= sizeof(MONITORINFOEX)) lstrcpy(((MONITORINFOEX*)lpMonitorInfo)->szDevice, TEXT("DISPLAY")); return TRUE; } return FALSE; } BOOL WINAPI xEnumDisplayMonitors( HDC hdc, LPCRECT lprcIntersect, MONITORENUMPROC lpfnEnumProc, LPARAM lData) { RECT rcCallback, rcLimit; if (InitMultipleMonitorStubs()) return g_pfnEnumDisplayMonitors(hdc, lprcIntersect, lpfnEnumProc, lData); if (!lpfnEnumProc) return FALSE; rcLimit.left = 0; rcLimit.top = 0; rcLimit.right = GetSystemMetrics(SM_CXSCREEN); rcLimit.bottom = GetSystemMetrics(SM_CYSCREEN); if (hdc) { RECT rcClip; HWND hWnd; if ((hWnd = WindowFromDC(hdc)) == NULL) return FALSE; switch (GetClipBox(hdc, &rcClip)) { default: MapWindowPoints(NULL, hWnd, (LPPOINT)&rcLimit, 2); if (IntersectRect(&rcCallback, &rcClip, &rcLimit)) break; //fall thru case NULLREGION: return TRUE; case ERROR: return FALSE; } rcLimit = rcCallback; } if (!lprcIntersect || IntersectRect(&rcCallback, lprcIntersect, &rcLimit)) { lpfnEnumProc(xPRIMARY_MONITOR, hdc, &rcCallback, lData); } return TRUE; } BOOL WINAPI xEnumDisplayDevices(LPVOID lpReserved, int iDeviceNum, DISPLAY_DEVICE * pDisplayDevice, DWORD dwFlags) { if (InitMultipleMonitorStubs()) return g_pfnEnumDisplayDevices(lpReserved, iDeviceNum, pDisplayDevice, dwFlags); return FALSE; } #undef xPRIMARY_MONITOR #undef COMPILE_MULTIMON_STUBS #else // COMPILE_MULTIMON_STUBS extern int WINAPI xGetSystemMetrics(int); extern HMONITOR WINAPI xMonitorFromWindow(HWND, UINT); extern HMONITOR WINAPI xMonitorFromRect(LPCRECT, UINT); extern HMONITOR WINAPI xMonitorFromPoint(POINT, UINT); extern BOOL WINAPI xGetMonitorInfo(HMONITOR, LPMONITORINFO); extern BOOL WINAPI xEnumDisplayMonitors(HDC, LPCRECT, MONITORENUMPROC, LPARAM); extern BOOL WINAPI xEnumDisplayDevices(LPVOID, int, DISPLAY_DEVICE *,DWORD); #endif // COMPILE_MULTIMON_STUBS // // build defines that replace the regular APIs with our versions // #define GetSystemMetrics xGetSystemMetrics #define MonitorFromWindow xMonitorFromWindow #define MonitorFromRect xMonitorFromRect #define MonitorFromPoint xMonitorFromPoint #define GetMonitorInfo xGetMonitorInfo #define EnumDisplayMonitors xEnumDisplayMonitors #define EnumDisplayDevices xEnumDisplayDevices #ifdef __cplusplus } #endif /* __cplusplus */ //#endif /* !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500) */