The GetBkMode function 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 of interest |
); |
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.