ModestMainWindowPrivate *priv;
GtkWidget *widget;
- g_return_val_if_fail (self, NULL);
+ g_return_val_if_fail (self && MODEST_IS_MAIN_WINDOW(self), NULL);
g_return_val_if_fail (widget_type >= 0 && widget_type < MODEST_MAIN_WINDOW_WIDGET_TYPE_NUM,
NULL);