Re: getting button_press event for gtk_drawing_area

[Eigo Mori <eigom pop01 odn ne jp>]

Hi Carlos,

> > This has been working fine until being compiled with gtk+-2.18.0 but
> > does not work after that. Now I found that it worked with the later
> > gtk if I add GDK_BUTTON_RELEASE_MASK when calling
> > gtk_widget_set_events(). I don't know why... I even don't have the
> > callback for the event.
> >
> > I guess I am simply wrong with my coding. I appreciate if someone can
> > educate me a bit how this should be done correctly. The sample below
> > is still valid. (if you add GDK_BUTTON_RELEASE_MASK, it works) 
> I know nothing about your problem, but it seems that in my GTK 2.18.3, 
> button press events in drawing areas need GDK_BUTTON_RELEASE_MASK to 
> properly work. This was not the case in older GTK versions (tested it 
> with GTK 2.12.8).
>
> In my case, what I notice is: if I press a button over a drawing area, 
> then I need to press twice a Cancel or a Ok button in a (window widget) 
> dialog for this to be effective. It seems a problem of focus grab... 
> adding GDK_BUTTON_RELEASE_MASK with gtk_widget_set_events the problem 
> disappears...

Thanks. Sounds like the similar case. In my case if I press somewhere in
the window but out of the drawing_area(s), I can make the next press
effective. Indeed it looks like a focus problem.

If I am correct GDK_BUTTON_RELEASE_MASK has been set internally until the
specific commit. But it needs to be set by the application after the
change to work properly. I don't know how this works. Maybe there also is
some internal callback for this event and is doing some magic.

But thanks anyway. It was good to hear that someone else has the similar
issue and is workarounding the same way.

Regards,
Eigo