_FillBitmap
_FillBitmap(fBitmap, fMode, fFixedValue, fOrientation);
void _FillBitmap(BBitmap* bitmap,
_FillBitmap(fBitmap, fMode, fFixedValue1, fFixedValue2, fOrientation);
void _FillBitmap(BBitmap* bitmap,
_FillBitmap(fPolygon);
void _FillBitmap(point* polygon);