Re: How to detect gtk widget partial visible? visibility-notify-event?

["MD Tsai" <md tsai gmail com>]

Hi Yeti,

Thanks for your reply. It seems every widget could use this function to
enable the event bits, is this right? How could I find the default event
setting of every widget, which is enabled and which is disabled?

Best regard,

Eric Tsai

2007/9/11, David Nečas (Yeti) <yeti physics muni cz>:
> On Tue, Sep 11, 2007 at 05:54:54PM +0800, MD Tsai wrote:
> > Is it possible for a gtk widget to detect it is partial visible? For
> > example, I can drag one window on another window. The covered window can
> be
> > notified that it is partial visible?
> >
> > I've registered the "visibility-notify-event" but never receive
> callback,
>
> gtk_widget_add_events(widget, GDK_VISIBILITY_NOTIFY_MASK);
>
> Yeti
>
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