Re: catching a mouse scroll event on a Gtk::DrawingArea

[Rob Benton <rob benton conwaycorp net>]

Well I thought I was but it looks like I was adding it to the wrong 
widget :)


Jonathon Jongsma wrote:
> Have you added the necessary events? (i.e. Gtk::Widget::add_events())
>
> Jonner
>
> On 2/18/06, Rob Benton <rob benton conwaycorp net> wrote:
>
> > Can this be done?  I tried with the signal_scroll_event() signal but I'm
> > not getting into the handler:
> >
> >
> > MyWindow::MyWindow()
> > {
> >   _drawarea.signal_scroll_event().connect(sigc::mem_fun(*this,
> >     &MyWindow::on_drawarea_scroll));
> > }
> >
> > bool MyWindow::on_drawarea_scroll(GdkEventScroll * e)
> > {
> >   if (e->direction == GDK_SCROLL_UP)
> >   {
> >     // up code
> >   }
> >   else if (e->direction == GDK_SCROLL_DOWN)
> >   {
> >     // down code
> >   }
> >   g_print("%d\n", e->direction);
> >
> >   return true;
> > }
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