public void InstallProperties(ParamSpec[] pspecs)
{
if (pspecs == null)
{
throw new ArgumentNullException(nameof(pspecs));
}
var pspecs_ = GMarshal.OpaqueCArrayToPtr <ParamSpec> (pspecs, false);
var nPspecs_ = (uint)(pspecs == null ? 0 : pspecs.Length);
g_object_class_install_properties(Handle, nPspecs_, pspecs_);
GMarshal.Free(pspecs_);
}