gtk/gtk.go
func FileChooserButtonNew(title string, action FileChooserAction) (*FileChooserButton, error) {
	cstr := C.CString(title)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gtk_file_chooser_button_new((*C.gchar)(cstr),
		(C.GtkFileChooserAction)(action))
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return wrapFileChooserButton(obj), nil
}
func FileChooserButtonNew(title string, action FileChooserAction) (*FileChooserButton, error) {
	cstr := C.CString(title)
	defer C.free(unsafe.Pointer(cstr))
	c := C.gtk_file_chooser_button_new((*C.gchar)(cstr),
		(C.GtkFileChooserAction)(action))
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return wrapFileChooserButton(obj), nil
}
// FileChooserButtonNew is a wrapper around gtk_file_chooser_button_new().