public static Rect CheckScreenRect(IntPtr windowHandle)
{
Rect rect = new Rect();
if (windowHandle == IntPtr.Zero)
{
return(rect);
}
IntPtr hMonitor = DpiUtil.MonitorFromWindow(windowHandle, DpiUtil.MONITOR_DEFAULTTONEAREST);
MONITORINFOEX monitorInfo = DisplayUtil.CreateMonitorInfo();
int result = DisplayUtil.GetMonitorInfo(hMonitor, ref monitorInfo);
if (result == 0)
{
log.Error("failed to get monitor info");
return(rect);
}
DisplayUtil.DEVMODE dm = DisplayUtil.CreateDevmode();
if (0 != DisplayUtil.EnumDisplaySettings(
monitorInfo.szDevice,
DisplayUtil.ENUM_CURRENT_SETTINGS,
ref dm))
{
rect = new Rect(dm.dmPositionX, dm.dmPositionY, dm.dmPelsWidth, dm.dmPelsHeight);
log.WarnFormat("CheckScreenRect: {0}, {1}, {2}, {3}, {4}", monitorInfo.szDevice, dm.dmPositionX, dm.dmPositionY, dm.dmPelsWidth, dm.dmPelsHeight);
}
return(rect);
}
public static void CheckScreenOrientation(IntPtr windowHandle)
{
if (windowHandle == IntPtr.Zero)
{
return;
}
IntPtr hMonitor = DpiUtil.MonitorFromWindow(windowHandle, DpiUtil.MONITOR_DEFAULTTONEAREST);
MONITORINFOEX monitorInfo = DisplayUtil.CreateMonitorInfo();
int result = DisplayUtil.GetMonitorInfo(hMonitor, ref monitorInfo);
if (result == 0)
{
log.Error("failed to get monitor info");
return;
}
DisplayUtil.DEVMODE dm = DisplayUtil.CreateDevmode();
if (0 != DisplayUtil.EnumDisplaySettings(
monitorInfo.szDevice,
DisplayUtil.ENUM_CURRENT_SETTINGS,
ref dm))
{
// swap width and height
int temp = dm.dmPelsHeight;
dm.dmPelsHeight = dm.dmPelsWidth;
dm.dmPelsWidth = temp;
int iRet = 0;
// determine new orientation
switch (dm.dmDisplayOrientation)
{
case DisplayUtil.DMDO_DEFAULT:
break;
case DisplayUtil.DMDO_270:
dm.dmDisplayOrientation = DisplayUtil.DMDO_180;
iRet = DisplayUtil.ChangeDisplaySettingsEx(monitorInfo.szDevice, ref dm, IntPtr.Zero, 0, IntPtr.Zero);
if (iRet != 0)
{
log.Error("ChangeDisplaySettings() failed, return value=" + iRet);
}
break;
case DisplayUtil.DMDO_180:
break;
case DisplayUtil.DMDO_90:
dm.dmDisplayOrientation = DisplayUtil.DMDO_DEFAULT;
iRet = DisplayUtil.ChangeDisplaySettingsEx(monitorInfo.szDevice, ref dm, IntPtr.Zero, 0, IntPtr.Zero);
if (iRet != 0)
{
log.Error("ChangeDisplaySettings() failed, return value=" + iRet);
}
break;
default:
// unknown orientation value
// add exception handling here
break;
}
}
}