Thank you for your reply, I had do this before(use delete-event signal). But
, sometimes , it will crash after reopen the child-window for five or more
times. I don't know why.
anyway , maybe this is the only way to solve the problem.
>
> I wirte a sample application use GktBuilder + glade3. there are one
> main-window(top level) and some other child-window (top level too, creat
> and
> show when the menu item is actived, in my code it is named window_rank).
> after close the child-window for first time, i click the menu item again.
> But this child-window cannot be created and showed again. with many errors
> or warming like this:
>
> (lsacs_gsecu:11866): GLib-GObject-WARNING **: invalid unclassed pointer in
> cast to `GtkCList'
>
> (lsacs_gsecu:11866): Gtk-CRITICAL **: gtk_clist_append: assertion
> `GTK_IS_CLIST (clist)' failed
>
> (lsacs_gsecu:11866): GLib-GObject-WARNING **: invalid unclassed pointer in
> cast to `GtkCList'
>
> ...
>
> etc.
>
>
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>
>
> I had the same problem with my first Glade 3-based GUI. What you need to do
> is i connect to the "delete-event"
>
> in the child-window code, as follows:
>
>
>
> ??? g_signal_connect(GTK_WINDOW(cwin), "delete-event",??????????????? // I
> used cwClose for the callback,
> ???????????????????? G_CALLBACK(cwClose_window), NULL);????????????????????
> // but you can use any name you want.
>
>
>
> ?and then write the callback function, also in the child window code, as
> follows:
>
>
>
> gboolean cwClose_window(GtkWidget *window, GdkEvent *event, gpointer
> user_data)
> {
> ??? gtk_widget_hide(GTK_WIDGET(cwin));
> ??? return TRUE;
> }
>
>
>
> This "Hides" the window, rather than disposing of it, when the delete-event
> is triggered, so that when you try to open the child-window again, it will
> be revealed.
>
>
>
> Hope this helps.
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