Re: gtk widget events (was: gtk_widget_set_name)

[Dov Grobgeld <dov imagic weizmann ac il>]

By default the drawing area isn't set up to receive button press events.
You have to explicitely change this by adding a call to:

   $drawingarea->set(events=>['button-press-mask']);

after its construction.

Then your program works just fine.

Regards,

On Mon, May 27, 2002 at 12:09:40AM +0200, Riswick, J.G.A. van wrote:
>  
> HI!
>
> Yes you are right, thanks. In the meantime, I managed
> to locate the manpage (Gtk::reference) and also found it 
> there.         
>
> Some time ago, I wrote a gtk program and now I'm trying
> to convert it to gtk-perl. I stumbeled upon something that
> I can't get to work. In my gtk program I connected a signal
> handler to a drawing area like this:
>
>             gtk_signal_connect
>                (GTK_OBJECT(drawingarea), "event",
>                    (GtkSignalFunc)area_event, (gpointer)drawingarea);
>
> Now I'm trying to do the same using gtk-perl (sample below). The
> callback function seems to get called, but filtering out the 
> button_press event doesn't work. does anyone know what I'm doing
> wrong?
>
> jos
>
>
> ---------
>
>
> #!/usr/bin/perl -w
>
> use Gtk;
> init Gtk;
>
> $win = new Gtk::Window;
> $win->set_usize(300,200);
> $win->show_all;
>
> $drawingarea = new Gtk::DrawingArea();
> $drawingarea->show();
> $win->add($drawingarea);
> $drawingarea->signal_connect('event' , \&cb );
>
> sub cb {
>
>    my ( $widget, $data, $event ) = @_; 
>
>  if ( ( defined( $event->{'type'} ) ) and
>       ( $event->{'type'} eq 'button_press' ) )
>    {
>         $win->set_title('right');
>      if ( $event->{'button'} == 3 )
>        {
>         $win->set_title('right');
>        }
>      else
>        {
>         $win->set_title('left');
>        }
>    }
>
>   return 0;
>
> }
>
> main Gtk;
>
>
>
> -----Original Message-----
> From: Dermot Musgrove
> To: Riswick, J.G.A. van
> Cc: 'gtk-perl-list gnome org'
> Sent: 5/26/2002 6:38 PM
> Subject: Re: gtk_widget_set_name
>
> "Riswick, J.G.A. van" wrote:
> > HI
> >
> > Is it possible to access the function gtk_widget_set_name()
> > using gtk-perl? This lets the user link styles in the gtkrc
> > file to a widget.
> Hi, I reckon so - Gtk::Widget->set_name() so for instance:
>
>     $clist->set_name('New name');
>
> regards, Dermot
>
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