internal/graphicsdriver/opengl/gl/package_windows.go
func IsSync(sync uintptr) bool {
	ret, _, _ := syscall.Syscall(gpIsSync, 1, uintptr(sync), 0, 0)
	return ret != 0
}
func IsSync(sync uintptr) bool {
	ret, _, _ := syscall.Syscall(gpIsSync, 1, uintptr(sync), 0, 0)
	return ret != 0
}
// determine if a name corresponds to a sync object