[prev in list] [next in list] [prev in thread] [next in thread] 

List:       gtk-app-devel
Subject:    Re: client-side windows and XQueryTree
From:       Mario Kemper <mario.kemper () googlemail ! com>
Date:       2009-11-27 13:28:23
Message-ID: 1259328503.3852.0.camel () mario-xps
[Download RAW message or body]

Is anyone able to help with this?

Regards
Mario

Am Dienstag, den 06.10.2009, 23:25 +0200 schrieb Mario Kemper:
> Hi there,
> 
> I'm the developer of Shutter (a screenshot taking application written
> with gtk2-perl).
> After upgrading to the latest versions of Gnome (2.28) and Gtk+ during
> the last days I've discovered that the client-side window mechanism is
> "breaking" some of the functionalities of Shutter.
> 
> There is a function called "Section" that allows you to capture one of
> the subwindows of a foreign window by moving the mouse over it.
> 
> The "Section" function queries the window tree information by calling an
> xlib function, XQueryTree. I know that before Gtk+ 2.18 most of the
> widgets had a corresponding xwindow. The information about the
> subwindows were used to detect them and draw a rectangle around them
> that illustrated their geometry.
> 
> If I understand the changes correctly this means that the XServer no
> longer knows about the subwindow hierarchy of a Gtk+ window and I can't
> use the XQueryTree function any longer, right?
> I know that is possible to query the children of a GDK-window, but this
> works only if your own application created that window. Shutter needs to
> get the children of foreign toplevel windows.
> 
> Does anyone have an idea on how this problem could be solved?
> Maybe with the help of AT-SPI?
> Accerciser is using it (the python bindings) to query the structure of
> toplevel windows:
> http://live.gnome.org/GAP/PythonATSPI
> 
> But I would love to see a solution that I can implement with perl ;-)
> 
> Thank you very much for your help. I hope I've explained everything
> clearly enough.
> 
> Regards
> Mario
> 


_______________________________________________
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
[prev in list] [next in list] [prev in thread] [next in thread]