On Tue, Mar 17, 2009 at 12:05, jody <[email protected]> wrote: > Sorry > I forgot to send this to the list > > As Guillaume said, set_active is specific to Gtk::ToggleButton and > derived classes. > So if you don't want (or cant) use set_active() directly, you could > use a pointer to Gtk::ToggleButton instead of a pointer to Gtk::Widget* : > Gtk::ToggleButton btnOK; > Gtk::ToggleButton *ptrElement = NULL; > > ptrElement = &btnOK; > > ptrElement->set_active(true); > > If your pointer sometimes points at other kinds of Widgets, you could > still use a pointer to Gtk::Widget, and then cast it to a pointer to > Gtk::ToggleButton before using it: > > dynamic_cast<Gtk::ToggleButton *>(ptrElement)->set_active(true); > > Keep in mind that this will give you an error if at that moment > ptrElement does not point to a Gtk::ToggleButton (or descendant) > > > Jody > > On Tue, Mar 17, 2009 at 3:58 PM, Paulo Flabiano Smorigo > <[email protected]> wrote: >> On Tue, Mar 17, 2009 at 11:40, Guillaume Brocker >> <[email protected]> wrote: >>> Paulo Flabiano Smorigo a écrit : >>>> >>>> Hello, >>>> >>>> What can I do to solve the following error? I need to use a different >>>> kind of pointer? >>>> >>>> The code: >>>> Gtk::ToggleButton btnOK; >>>> Gtk::Widget *ptrElement = NULL; >>>> >>>> ptrElement = &btnOK; >>>> >>>> ptrElement->set_active(true); >>>> >>>> The error: >>>> error: ‘class Gtk::Widget’ has no member named ‘set_active’ >>> >>> Gtk::Widget has no member ‘set_active’. This member is specific to >>> Gtk::ToggleButton and derived classes. Wy don't you call ‘btnOK.set_active’ >>> directly ? >>> >>>> Thanks in advance, >>>> Paulo Flabiano Smorigo >>> >>> Guillaume >>> >> >> Hi Guillaume, >> >> Thanks for the fast reply... >> >> I know that the Gtk::Widget don't have the set_active() member but as >> it is pointing to a ToggleButton widget, isn't it possible to use the >> method? >> >> I there a someway to make the pointer accept the method? >> >> Thanks... >> Paulo Flabiano Smorigo >> _______________________________________________ >> gtkmm-list mailing list >> [email protected] >> http://mail.gnome.org/mailman/listinfo/gtkmm-list >> >
Hi everyone, Thanks for the help! It works. I put a validation to test if it is an ToggleButton before. Thanks again, Paulo Flabiano Smorigo _______________________________________________ gtkmm-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/gtkmm-list
