Group: Painting and Drawing - Library: gdi32
Returns the current background mix mode for a specified device context. The background mix mode of a device context affects text, hatched brushes, and pen styles that are not solid lines.
int GetBkMode(
HDC hdc // handle to device context
);
DECLARE INTEGER GetBkMode IN gdi32;
INTEGER hdc
hdc [in] Handle to the device context whose background mode is to be returned.
If the function succeeds, the return value specifies the current background mix mode, either OPAQUE or TRANSPARENT.
If the function fails, the return value is zero.
#DEFINE OPAQUE 2
#DEFINE TRANSPARENT 1