Re: data in signal association. (user_data on GTK+)
- From: Krzysztof Kosiński <tweenk pl gmail com>
- To: John Holmes <merli renato gmail com>
- Cc: gtkmm-list gnome org
- Subject: Re: data in signal association. (user_data on GTK+)
- Date: Wed, 20 Jan 2010 23:49:17 +0100
2010/1/20 John Holmes <merli renato gmail com>:
> The following code don´t work:
>
> Gtk::MenuItem * tmp_item;
> refXml->get_widget("mn_add_dvd", tmp_item);
>
> (tmp_item)->signal_activate().connect( sigc::bind( sigc::slot (*this,
> app::cb_menu_click, "test")));
The first argument of sigc::bind is the slot, and the second is the
argument that should be bound. In general, using the sigc::slot
constructor directly is rarely necessary. Here's a correct example:
void cb_menu_click(const char *test_param) { ... }
...
tmp_item->signal_activate().connect(sigc::mem_fun(*this,
&App::cb_menu_click), "test");
Regards, Krzysztof Kosiński
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