Win32CurrentDisplayOrientation.cpp

//MUST have a valid window created to obtain a correct HMONITOR from the window's hWnd. Console windows don't give a correct HMONITOR.
//Neither did it work by calling GetConsoleWindow to get a hWnd for a console application and querying the HMONITOR from the console hWnd.

//Monitor from Window
HMONITOR monitor_handle = MonitorFromWindow(hWnd, MONITOR_DEFAULTTONEAREST);

MONITORINFOEX monitor_info;
monitor_info.cbSize = sizeof(MONITORINFOEX);

GetMonitorInfo(monitor_handle, &monitor_info);

DEVMODE devmode;

EnumDisplaySettings(
	monitor_info.szDevice,
	ENUM_CURRENT_SETTINGS,
	&devmode
	);

switch (devmode.dmDisplayOrientation){
case DMDO_90:
	//Portrait
	break;
case DMDO_180:
	//Landscape(Flipped)
	break;
case DMDO_270:
	//Portrait(Flipped)
	break;
default:
	//Landscape
}
//Display name is monitor_info.szDevice and Orientation comes from the above switch in whichever form we need