Sweden-Number/windows/multimon.c

158 lines
4.4 KiB
C

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