In progress
Rotating the Screen
- Albinleo Velappan (Deactivated)
- Anu Selvaraj (Deactivated)
Owned by Albinleo Velappan (Deactivated)
To rotate the screen you can use the ChangeDisplaySettingsEx()-function.
LONG ChangeDisplaySettingsEx(
LPCTSTR lpszDeviceName,
LPDEVMODE lpDevMode,
HWND hwnd,
DWORD dwflags,
LPVOID lParam
);View Microsoft documentation of this function.
Here is a sample on how it is done:
void RotateScreen( UINT position)
{
DEVMODE devMode = {0};
devMode.dmSize = sizeof (devMode);
devMode.dmFields = DM_DISPLAYQUERYORIENTATION;
if (DISP_CHANGE_SUCCESSFUL != ChangeDisplaySettingsEx(NULL, &devMode, NULL, CDS_TEST, NULL))
{
RETAILMSG( 1, (TEXT("Failed to get RotationAngles")));
return;
}
devMode.dmFields = DM_DISPLAYORIENTATION;
switch ( position)
{
case 0:
devMode.dmDisplayOrientation = DMDO_0;
break;
case 90:
devMode.dmDisplayOrientation = DMDO_90;
break;
case 180:
devMode.dmDisplayOrientation = DMDO_180;
break;
case 270:
devMode.dmDisplayOrientation = DMDO_270;
break;
}
ChangeDisplaySettingsEx(NULL,&devMode,NULL, CDS_RESET,NULL);
}Download
Sample Application: