[gtkada] Dynamically Changing the Toggle Button Label
Emmanuel Briot
briot at gnat.com
Fri Oct 13 17:08:38 CEST 2000
> With that in place and trying it again I still get the constraint error when
> I make the following call.
>
> I tried this way:
>
> Gtk.Label.Set_Text
> (Gtk.Label.Gtk_Label
> (Gtk.Toggle_Button.Get_Child (Window1.Togglebutton1)),
> "label");
Did you really create the button with a child (for instance a string), or did
you create an empty button ? In the second case, there is of course a
constraint_error since Ada can not convert null to a Gtk_Label.
All the CE we get with GtkAda lately are all related to misuse of Ada itself,
not of GtkAda.
Emmanuel
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