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Tutorial (was: Re: Question about widgets)



Hello,
The tutorial looks interesting. But I notice that it is for GTK1.2 and is 
dated February 2000. How useful is it now?

ÃJohn

On Mon, 6 Jan 2003, Tristan Van Berkom wrote:

> > GtkWidget *button;
> 
> is a pointer
> 
> > GtkWidget button;
> 
> would be an `automatic' declaration
> of the GtkWidget data structure.
> 
> a widget is created by the GObject/GType
> system with a function like:
> 
> gtk_button_new();
> 
> which will return the address of
> a newly allocated and initialized
> widget.
> 
> 
> 
> >   It has an interesting thing which is, it has a single widget 'button'
> > assigned to 2 different button instances "Button 1" and "Button 2". How
> > is this possible? Is it possible to assign a single widget for multiple
> > different buttons of the same characterstics?
> 
> No. there are two widgets in this picture; only
> one pointer was automaticly allocated to point 
> to either of them.
> 
> 
> Cheers,
> 			-Tristan
> 
> 
> 
> > 
> > int main( int   argc,char *argv[] )
> > {
> >     GtkWidget *window;
> >     GtkWidget *button;
> >     GtkWidget *box1;
> 
> 
> 
> 
> 
> Vikram S Bartakke wrote:
> > 
> > Hi All,
> > 
> >  Following is a small upgraded hallo window program from the tutorial
> > site at http://www.gtk.org/tutorial1.2/gtk_tut-3.html#ss3.3
> > 
> >   It has an interesting thing which is, it has a single widget 'button'
> > assigned to 2 different button instances "Button 1" and "Button 2". How
> > is this possible? Is it possible to assign a single widget for multiple
> > different buttons of the same characterstics?
> > 
> > I would be glad if anybody can provide me the answer.
> > 
> > thanks in advance,
> > 
> > code is below:-
> > ==============
> > 
> > int main( int   argc,char *argv[] )
> > {
> >     GtkWidget *window;
> >     GtkWidget *button;
> >     GtkWidget *box1;
> > 
> >     gtk_init (&argc, &argv);
> > 
> >     window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
> >     gtk_signal_connect (GTK_OBJECT (window), "delete_event",
> >                         GTK_SIGNAL_FUNC (delete_event), NULL);
> >     gtk_container_set_border_width (GTK_CONTAINER (window), 10);
> > 
> >     box1 = gtk_hbox_new(FALSE, 0);
> >     gtk_container_add (GTK_CONTAINER (window), box1);
> > 
> >     button = gtk_button_new_with_label ("Button 1");
> >     gtk_signal_connect (GTK_OBJECT (button), "clicked",
> >                    GTK_SIGNAL_FUNC (callback), (gpointer) "button 1");
> >     gtk_box_pack_start(GTK_BOX(box1), button, TRUE, TRUE, 0);
> >     gtk_widget_show(button);
> > 
> >     button = gtk_button_new_with_label ("Button 2");
> >     gtk_signal_connect (GTK_OBJECT (button), "clicked",
> >                    GTK_SIGNAL_FUNC (callback), (gpointer) "button 2");
> >     gtk_box_pack_start(GTK_BOX(box1), button, TRUE, TRUE, 0);
> >     gtk_widget_show(button);
> > 
> >     gtk_widget_show(box1);
> >     gtk_widget_show (window);
> > 
> >     gtk_main ();
> >     return(0);
> > }
> > 
> > ========================================
> > Vikram S Bartakke
> > Grad Student (CS Dept)
> > University of New Mexico
> > Albuquerque, NM 87131
> > ========================================
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list@gnome.org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
> _______________________________________________
> gtk-app-devel-list mailing list
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> http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
> 

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