func GetPolygonStipple(mask *uint8) {
	syscall.Syscall(gpGetPolygonStipple, 1, uintptr(unsafe.Pointer(mask)), 0, 0)
}
func GetPolygonStipple(mask *uint8) {
	syscall.Syscall(gpGetPolygonStipple, 1, uintptr(unsafe.Pointer(mask)), 0, 0)
}
// return the polygon stipple pattern