Re: How to ask if a widget is GtkMenuBar or GtkMenuItem

[Ignacio Nodal <inodal teleline es>]

Havoc Pennington wrote:

> Ignacio Nodal <inodal teleline es> writes:
>
> > Hi, i'm writing my own functions to create menus, submenus, etc.
> >
> > In my function CreateMenu(GtkWidget* parent, gchar* label), I would
> > like to know if my "GtkWidget* parent" parameter is either a
> > GtkMenuBar or a GtkMenuItem..
> >
> > how can I ask this?
>
> GTK_IS_MENU_BAR() and GTK_IS_MENU_ITEM()

The problem is parent is either a GtkMenuBar or a GtkMenuItem, so.. if I 
ask at the beginning of my function:

if (GTK_IS_MENU_ITEM(parent)) ...

and it's a GtkMenuBar I get a GTK-Critical:


Gtk-WARNING **: invalid class type `(unknown)' in cast to `GtkMenuItem'

Gtk-CRITICAL **: file gtkmenuitem.c: line 241 
(gtk_menu_item_set_submenu): assertion `GTK_IS_MENU_ITEM (menu_item)' 
failed.


How should I ask?

Thanks again