[pygtk] Geting a window/dialog to appear on a different screen.

[finlay]

Neil Dugan wrote:
> Hi,
>
> I have a LTSP set-up here.  I would like to put a window or dialog on 
> the client screens, but I can't seem to get this to happen I am 
> getting weird errors from gtk.main().
>
> See attachment for the code.
>
> The errors I am getting are
> /media/tmp/testgui:43: GtkWarning: gdk_screen_get_display: assertion 
> `GDK_IS_SCREEN (screen)' failed
>   gtk.main()
> /media/tmp/testgui:43: GtkWarning: gdk_keymap_get_for_display: 
> assertion `GDK_IS_DISPLAY (display)' failed
>   gtk.main()
> /media/tmp/testgui:43: Warning: invalid (NULL) pointer instance
>   gtk.main()
> /media/tmp/testgui:43: Warning: g_signal_connect_data: assertion 
> `G_TYPE_CHECK_INSTANCE (instance)' failed
>   gtk.main()
> Traceback (most recent call last):
>   File "/media/tmp/testgui", line 43, in <module>
>     gtk.main()
>
>
> If I comment out line 20 
> "window.set_screen(display.get_screen(screen))" all works as expected.
>
> Any help appreciated.
The Display object (and probably the Screen object) created by Window() 
are dereferenced after the function returns and being destroyed. A 
reference to display needs to be maintained somewhere e.g. return it 
from Window() or save it as an attribute of window or something similar.

John