func (v *Window) GetTransientFor() (*Window, error) {
	c := C.gtk_window_get_transient_for(v.native())
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapWindow(glib.Take(unsafe.Pointer(c))), nil
}
func (v *Window) GetTransientFor() (*Window, error) {
	c := C.gtk_window_get_transient_for(v.native())
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapWindow(glib.Take(unsafe.Pointer(c))), nil
}
// GetTransientFor is a wrapper around gtk_window_get_transient_for().