GetLayeredWindowAttributes function user32
Retrieves the opacity and transparency color key of a layered window.
BOOL GetLayeredWindowAttributes(
HWND hwnd,
COLORREF *pcrKey,
BYTE *pbAlpha,
DWORD *pdwFlags
);
Implementation
int GetLayeredWindowAttributes(int hwnd, Pointer<Uint32> pcrKey,
Pointer<Uint8> pbAlpha, Pointer<Uint32> pdwFlags) =>
_GetLayeredWindowAttributes(hwnd, pcrKey, pbAlpha, pdwFlags);