func IsSampler(sampler uint32) bool {
	ret := C.glowIsSampler(gpIsSampler, (C.GLuint)(sampler))
	return ret == TRUE
}
func IsSampler(sampler uint32) bool {
	ret := C.glowIsSampler(gpIsSampler, (C.GLuint)(sampler))
	return ret == TRUE
}
// determine if a name corresponds to a sampler object