This used to be done with python-xlib code in window_util but was removed as it caused segfaults. r1450 All the other approaches I have tried did not work as advertised (root window property, etc..)

There must be something in dbus that would do the job, but I can't find it documented anywhere.

2010/08/01 06:17:22 ServerConnection.save_host_key(ServerConfig(DesktopOnline)) to file 'None'
Traceback (most recent call last):
  File "/usr/local/lib/python2.6/dist-packages/shifter/ui/ui_util.py", line 326, in <lambda>
    dialog.connect('response', lambda x,y: self.ask_response_callback(x,y,cancel_callback, ok_callback))
  File "/usr/local/lib/python2.6/dist-packages/shifter/ui/ui_util.py", line 333, in ask_response_callback
    ok_callback()
  File "/usr/local/lib/python2.6/dist-packages/shifter/client/server_connection.py", line 391, in trust_server
    self.save_host_key(self.server_link.server)
  File "/usr/local/lib/python2.6/dist-packages/shifter/client/server_connection.py", line 409, in save_host_key
    save_binary_file(filename, data)
  File "/usr/local/lib/python2.6/dist-packages/shifter/util/file_io.py", line 263, in save_binary_file
    assert filename
AssertionError

2010/08/01 06:17:34 ConfigureServerWindow.commit_changes()
2010/08/01 06:17:34 Traceback (most recent call last):

2010/08/01 06:17:34   File "/usr/local/lib/python2.6/dist-packages/shifter/ui/config_common.py", line 311, in commit_changes
    self.do_commit_changes(args)

2010/08/01 06:17:34   File "/usr/local/lib/python2.6/dist-packages/shifter/ui/config_server.py", line 385, in do_commit_changes
    self.server.preferred_desktop_type = self.desktop_types[active]

2010/08/01 06:17:34 IndexError: list index out of range