#keywords C++, 윈도, Z-Order
{{{#!gcode
HWND hNext = hWnd1;
BOOL bFlag = 0;
while (hNext)
{
	hNext = ::GetNextWindow(hNext, GW_HWNDNEXT);

	if (hNext == hWnd2)
		bFlag = 1;
}
}}}
----
{{{
bFlag = 1 hWnd1가 hWnd2보다 위
bFlag = 0 hWnd1가 hWnd2보다 아래 
}}}