--- /dev/null
+#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_CMONITORS
+
+#define SM_XVIRTUALSCREEN 76
+#define SM_YVIRTUALSCREEN 77
+#define SM_CXVIRTUALSCREEN 78
+#define SM_CYVIRTUALSCREEN 79
+#define SM_CMONITORS 80
+#define SM_SAMEDISPLAYFORMAT 81
+
+DECLARE_HANDLE(HMONITOR);
+
+#define MONITOR_DEFAULTTONULL 0x00000000
+#define MONITOR_DEFAULTTOPRIMARY 0x00000001
+#define MONITOR_DEFAULTTONEAREST 0x00000002
+
+#define MONITORINFOF_PRIMARY 0x00000001
+
+typedef struct tagMONITORINFO
+{
+ DWORD cbSize;
+ RECT rcMonitor;
+ RECT rcWork;
+ DWORD dwFlags;
+} MONITORINFO, *LPMONITORINFO;
+
+#define CCHDEVICENAME 32
+
+#ifdef __cplusplus
+typedef struct tagMONITORINFOEX : public tagMONITORINFO
+{
+ TCHAR szDevice[CCHDEVICENAME];
+} MONITORINFOEX, *LPMONITORINFOEX;
+#else
+typedef struct
+{
+ MONITORINFO;
+ TCHAR szDevice[CCHDEVICENAME];
+} MONITORINFOEX, *LPMONITORINFOEX;
+#endif
+
+typedef BOOL (CALLBACK* MONITORENUMPROC)(HMONITOR, HDC, LPRECT, LPARAM);
+
+#endif // SM_CMONITORS
+
+#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
+#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")) &&
+ #ifdef UNICODE
+ (*(FARPROC*)&g_pfnGetMonitorInfo = GetProcAddress(hUser32,"GetMonitorInfoW")) &&
+ (*(FARPROC*)&g_pfnEnumDisplayDevices = GetProcAddress(hUser32,"EnumDisplayDevicesW")) &&
+ #else
+ (*(FARPROC*)&g_pfnGetMonitorInfo = GetProcAddress(hUser32,"GetMonitorInfoA")) &&
+ (*(FARPROC*)&g_pfnEnumDisplayDevices = GetProcAddress(hUser32,"EnumDisplayDevicesA")) &&
+ #endif
+ (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) */
\ No newline at end of file
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