Re: signal_enter_notify_event() does nothing

[HeavyJoost <heavyjoost gmail com>]

Luca Cappa wrote:

> HeavyJoost wrote:
>
> > I want a function to be called when the mouse goes over a button, I 
> > use the following line:
> >
> > toolUndo->signal_enter_notify_event().connect(sigc::mem_fun(*this,&MainWindow::nothingExec)); 
> >
> >
> > where nothing exec is:
> >
> > bool MainWindow::nothingExec(GdkEventCrossing* event){
> >   std::cout << "nothing to do" << std::endl;
> >   return false;
> > }
>
>
>
> I think you could add mouse related events to the button, like adding 
> in its ctor (or just after it was created):
>
> add_events (Gdk::POINTER_MOTION_MASK | Gdk::ENTER_NOTIFY_MASK );
>
>
> See you
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How would I put that in my code? just like so?:
add_events (Gdk::POINTER_MOTION_MASK | Gdk::ENTER_NOTIFY_MASK );
toolUndo->signal_enter_notify_event().connect(sigc::mem_fun(*this,&MainWindow::nothingExec));

if so, then it doesn't work.. I really hope to get this to work :(