gtk_grab_add problem

[dexter <dexter balabit hu>]

Hey there,

I have a little problem with gtk_grab_add(). I've created a very simple 
app, which contains a window. The window has a hbox which has 1 button 
and 1 progressbar.

If I do a: gtk_grab_add(progressbar), I cannot click on the button as I 
expect, but I _can_ press Enter on it. The documentation about 
gtk_grab_add() says:

"...This means that interaction with other widgets in the same 
application is blocked and mouse as well as keyboard events are 
delivered to this widget."

So the question is, why the mouse events are blocked and keyboard ones 
are not?

--
Balazs