func BuilderNew() (*Builder, error) {
	c := C.gtk_builder_new()
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return &Builder{obj}, nil
}
func BuilderNew() (*Builder, error) {
	c := C.gtk_builder_new()
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return &Builder{obj}, nil
}
// BuilderNew is a wrapper around gtk_builder_new().