Can not disable an GtkAccelGroup

[Cosmin Bonea <cosminb saguaro dnttm ro>]

 Hi all, I'm new in the list.

 I used a GtkNotebook and I defined a GtkAccelGroup for each sheet and
 then added to the main window. The problem is that I want to enable
 only the accel_group coresponding to the current sheet(the one that
 has focus), so when "switch-page" signal occurs I have to disable all the
 accel_groups that are not for the current sheet.
 I tryed with gtk_accel_group_lock to disable it but it's not working.
 Could somebody help me!!!

 Thanks.

Best regards,

	Cosmin Bonea