158 lines
4.4 KiB
C
158 lines
4.4 KiB
C
/*
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* Multimonitor APIs
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*
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* Copyright 1998 Turchanov Sergey
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*/
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#include "windows.h"
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#define xPRIMARY_MONITOR ((HMONITOR)0x12340042)
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HMONITOR WINAPI MonitorFromPoint(POINT32 ptScreenCoords, DWORD dwFlags)
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{
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if ((dwFlags & (MONITOR_DEFAULTTOPRIMARY | MONITOR_DEFAULTTONEAREST)) ||
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((ptScreenCoords.x >= 0) &&
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(ptScreenCoords.x < GetSystemMetrics32(SM_CXSCREEN)) &&
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(ptScreenCoords.y >= 0) &&
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(ptScreenCoords.y < GetSystemMetrics32(SM_CYSCREEN))))
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{
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return xPRIMARY_MONITOR;
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}
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return NULL;
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}
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HMONITOR WINAPI MonitorFromRect(LPRECT32 lprcScreenCoords, DWORD dwFlags)
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{
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if ((dwFlags & (MONITOR_DEFAULTTOPRIMARY | MONITOR_DEFAULTTONEAREST)) ||
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((lprcScreenCoords->right > 0) &&
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(lprcScreenCoords->bottom > 0) &&
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(lprcScreenCoords->left < GetSystemMetrics32(SM_CXSCREEN)) &&
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(lprcScreenCoords->top < GetSystemMetrics32(SM_CYSCREEN))))
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{
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return xPRIMARY_MONITOR;
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}
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return NULL;
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}
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HMONITOR WINAPI MonitorFromWindow(HWND32 hWnd, DWORD dwFlags)
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{
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WINDOWPLACEMENT32 wp;
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if (dwFlags & (MONITOR_DEFAULTTOPRIMARY | MONITOR_DEFAULTTONEAREST))
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return xPRIMARY_MONITOR;
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if (IsIconic32(hWnd) ?
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GetWindowPlacement32(hWnd, &wp) :
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GetWindowRect32(hWnd, &wp.rcNormalPosition)) {
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return MonitorFromRect(&wp.rcNormalPosition, dwFlags);
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}
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return NULL;
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}
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BOOL32 WINAPI GetMonitorInfo32A(HMONITOR hMonitor, LPMONITORINFO lpMonitorInfo)
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{
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RECT32 rcWork;
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if ((hMonitor == xPRIMARY_MONITOR) &&
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lpMonitorInfo &&
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(lpMonitorInfo->cbSize >= sizeof(MONITORINFO)) &&
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SystemParametersInfo32A(SPI_GETWORKAREA, 0, &rcWork, 0))
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{
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lpMonitorInfo->rcMonitor.left = 0;
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lpMonitorInfo->rcMonitor.top = 0;
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lpMonitorInfo->rcMonitor.right = GetSystemMetrics32(SM_CXSCREEN);
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lpMonitorInfo->rcMonitor.bottom = GetSystemMetrics32(SM_CYSCREEN);
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lpMonitorInfo->rcWork = rcWork;
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lpMonitorInfo->dwFlags = MONITORINFOF_PRIMARY;
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if (lpMonitorInfo->cbSize >= sizeof(MONITORINFOEX32A))
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lstrcpy32A(((MONITORINFOEX32A*)lpMonitorInfo)->szDevice, "DISPLAY");
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return TRUE;
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}
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return FALSE;
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}
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BOOL32 WINAPI GetMonitorInfo32W(HMONITOR hMonitor, LPMONITORINFO lpMonitorInfo)
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{
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RECT32 rcWork;
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if ((hMonitor == xPRIMARY_MONITOR) &&
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lpMonitorInfo &&
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(lpMonitorInfo->cbSize >= sizeof(MONITORINFO)) &&
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SystemParametersInfo32W(SPI_GETWORKAREA, 0, &rcWork, 0))
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{
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lpMonitorInfo->rcMonitor.left = 0;
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lpMonitorInfo->rcMonitor.top = 0;
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lpMonitorInfo->rcMonitor.right = GetSystemMetrics32(SM_CXSCREEN);
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lpMonitorInfo->rcMonitor.bottom = GetSystemMetrics32(SM_CYSCREEN);
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lpMonitorInfo->rcWork = rcWork;
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lpMonitorInfo->dwFlags = MONITORINFOF_PRIMARY;
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if (lpMonitorInfo->cbSize >= sizeof(MONITORINFOEX32W))
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lstrcpy32W(((MONITORINFOEX32W*)lpMonitorInfo)->szDevice, "D\0I\0S\0P\0L\0A\0Y\0\0");
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return TRUE;
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}
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return FALSE;
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}
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BOOL32 WINAPI EnumDisplayMonitors(
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HDC32 hdcOptionalForPainting,
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LPRECT32 lprcEnumMonitorsThatIntersect,
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MONITORENUMPROC lpfnEnumProc,
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LPARAM dwData)
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{
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RECT32 rcLimit;
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if (!lpfnEnumProc)
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return FALSE;
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rcLimit.left = 0;
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rcLimit.top = 0;
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rcLimit.right = GetSystemMetrics32(SM_CXSCREEN);
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rcLimit.bottom = GetSystemMetrics32(SM_CYSCREEN);
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if (hdcOptionalForPainting)
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{
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RECT32 rcClip;
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POINT32 ptOrg;
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switch (GetClipBox32(hdcOptionalForPainting, &rcClip))
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{
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default:
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if (!GetDCOrgEx(hdcOptionalForPainting, &ptOrg))
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return FALSE;
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OffsetRect32(&rcLimit, -ptOrg.x, -ptOrg.y);
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if (IntersectRect32(&rcLimit, &rcLimit, &rcClip) &&
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(!lprcEnumMonitorsThatIntersect ||
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IntersectRect32(&rcLimit, &rcLimit, lprcEnumMonitorsThatIntersect))) {
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break;
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}
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//fall thru
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case NULLREGION:
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return TRUE;
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case ERROR:
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return FALSE;
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}
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} else {
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if ( lprcEnumMonitorsThatIntersect &&
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!IntersectRect32(&rcLimit, &rcLimit, lprcEnumMonitorsThatIntersect)) {
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return TRUE;
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}
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}
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return lpfnEnumProc(
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xPRIMARY_MONITOR,
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hdcOptionalForPainting,
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&rcLimit,
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dwData);
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}
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