On Wed, March 10, 2010 01:36, James Parkinson wrote:
>
> How do you signal another Widget, such as changing a NoteBook Tab when you
> select a menu item, especially when the widgets are defined in a glade xml
> file ?
>
> In the example code, when you click the menu item, it calls
> on_menu_change_tab() as the action for that menu item.
> How can this do the equivalent of nbMain.set_current_page(4) without
> causing a Segment fault on windoze ?
> [...]
> builder.connect_signals (null)
> [...]
> [CCode (cname="G_MODULE_EXPORT on_menu_change_tab")]
> def on_menu_change_tab ()
There are two problems with your handler:
1) It needs to have 'instance_pos = -1' added to the CCode clause, so it
will look like:
[CCode (name="G_MODULE_EXPORT on_menu_change_tab", instance_pos = -1)]
def on_menu_change_tab ()
That will change the signature of the method to what Gtk.Builer expects.
2) You need to pass 'this' as argument to builder.connect_signals, so it
can get passed to the handler.
3) Than just call nbMain.set_current_page(4) in the handler.
--
- Jan Hudec <[email protected]>
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