func GetPolygonStipple(mask *uint8) {
	C.glowGetPolygonStipple(gpGetPolygonStipple, (*C.GLubyte)(unsafe.Pointer(mask)))
}
func GetPolygonStipple(mask *uint8) {
	C.glowGetPolygonStipple(gpGetPolygonStipple, (*C.GLubyte)(unsafe.Pointer(mask)))
}
// return the polygon stipple pattern