Re: [[glade--]Beginner question]

[Christof Petig <christof petig-baender de>]

Murray Cumming wrote:

> "Dennis, Joseph D" <DennisJD BATTELLE ORG> wrote:
>
> > I am writing a small application in C++ and want to put a gui front end on
> > it.  I found this tutorial (http://writelinux.com/glade/index.php ) for
> > Glade and C and have been trying to apply it to glademm and c++.  I am
> stuck
>
> > trying to figure out how to write this function in c++:
> >
> > void on_button1_clicked(GtkButton *button, gpointer user_data){
> >
> > GtkWidget * label = lookup_widget(GTK_WIDGET(button), "label1");
> > GtkWidget * entry = lookup_widget(GTK_WIDGET(button), "entry1");
> >
> > gchar output[50]="Hello ";
> > strcat(output,gtk_entry_get_text(GTK_ENTRY(entry)));
> > gtk_label_set_text(GTK_LABEL(label),output);
> > }
> >
> > Apparently the lookup_widget() method only applies to C.  How can I pull
> the
>
> > text out of the entry box and push it into the label in this function?
> >
> > Thanks for your help.
>
> I think you need libglademm, which might provide a widget lookup method. But
> anway, whenever you've got a C GtkWhatever* you can get a Gtk::Whatever* by
> using Gtk::wrap() - see the gtkmm FAQ.


No libglademm is an alternative to glademm. Using both does not make much sense.


libglademm loads the glade file at runtime, glademm generates C++ code 
at compile time.


Answering your question:

There is a user class associated with the window. This class should contain 

methods for every callback you define. Since these callbacks are member 
functions all widgets declared as protected or public (C++ visibility in 
glade) are available by their name (pointer). Simply take a look inside 
*_glade.hh (after you made the widgets protected).

Did you know about the glademm user's manual? It does not contain a 
tutorial but covers most of these questions.

   Christof