func DebugMessageCallbackKHR(callback unsafe.Pointer, userParam unsafe.Pointer) {
	syscall.Syscall(gpDebugMessageCallbackKHR, 2, syscall.NewCallback(callback), uintptr(userParam), 0)
}
func DebugMessageCallbackKHR(callback unsafe.Pointer, userParam unsafe.Pointer) {
	syscall.Syscall(gpDebugMessageCallbackKHR, 2, syscall.NewCallback(callback), uintptr(userParam), 0)
}
// Parameter callback has type C.GLDEBUGPROCKHR.