Keyboard shortcut for button

[Alain Bertrand <alainbe free fr>]

Hello all,

I have a button that was created by :
	btnCorrect = manage(new Gtk::Button(_("Correct")));

To add a keybord shortcut, I changed it to
	btnCorrect = manage(new Gtk::Button(_("Correct _c"),true));
At run time the c does appear underlined but pressing the c key has no 
effect. Directly pressing  the button does work.

Thanks for your help,

Alain