1# This file is part of Xpra. 

2# Copyright (C) 2017-2019 Antoine Martin <antoine@xpra.org> 

3# Xpra is released under the terms of the GNU GPL v2, or, at your option, any 

4# later version. See the file COPYING for details. 

5 

6def verify_gdk_display(display_name): 

7 # Now we can safely load gtk and connect: 

8 import gi 

9 gi.require_version("Gdk", "3.0") 

10 from gi.repository import Gdk 

11 display = Gdk.Display.open(display_name) 

12 if not display: 

13 from xpra.scripts.config import InitException 

14 raise InitException("failed to open display %s" % display_name) 

15 manager = Gdk.DisplayManager.get() 

16 default_display = manager.get_default_display() 

17 if default_display is not None and default_display!=display: 

18 default_display.close() 

19 manager.set_default_display(display) 

20 return display