gtk/gtk_since_3_10.go
func (v *HeaderBar) GetCustomTitle() (*Widget, error) {
	c := C.gtk_header_bar_get_custom_title(v.native())
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapWidget(glib.Take(unsafe.Pointer(c))), nil
}
func (v *HeaderBar) GetCustomTitle() (*Widget, error) {
	c := C.gtk_header_bar_get_custom_title(v.native())
	if c == nil {
		return nil, nilPtrErr
	}
	return wrapWidget(glib.Take(unsafe.Pointer(c))), nil
}
// GetCustomTitle is a wrapper around gtk_header_bar_get_custom_title().