Re: [gtk-list] Re: Setting check menu item state without triggering

[Federico Mena Quintero <federico nuclecu unam mx>]

>  >     I have several check menu items in a menu and want to set their state
>  > without triggering the menu item's signal function. Normally, the state is
>  > changed when the user selects the item which all works well. Sometimes, such
>  > as when loading preferences, I want to check and uncheck these items to
>  > match the preferences. I tried the code in Developing Linux Applications
>  > (Synchronizing Toolbar and Menu Items, starting page 96) but this results in
>  > signals being sent.
>  > 
>  
>  Yeah, there is no nice way to avoid this. The easiest thing to do is keep
>  a boolean flag somewhere, and if TRUE have your signal handlers return
>  without doing anything. 

It may be more convenient to just block the signal while you are
changing the state of the menu items.  You can use
gtk_signal_handler_block_*() and gtk_signal_handler_unblock_*() for
this.

You would do something like

	gtk_signal_handler_block_by_data (GTK_OBJECT (my_menu_item), my_data);
	gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (my_menu_item), TRUE);
	gtk_signal_handler_unblock_by_data (GTK_OBJECT (my_menu_item), my_data);

  Federico