Strange assertions on gtk_main_quit

["Karl H. Beckers" <karl h beckers gmx net>]

Hi all,

I'm puzzled by some assertions I'm seeing irregularly when closing my
application through the window manager (delete event).

This happens almost always if some other dialog windows which are
normally shown have been destroyed before closing the application.
However, it only happens in gtk_main_quit, and I'm really at a loss what
that function is trying to do here. Been even looking at gtkmain.c and
gmain.c b ut they look rather unspectacular around gtk_main_quit or
g_main_loop_quit.

Any ideas, hints, pointers? 

TIA,

Karl.


(xvidcap:16996): Gdk-CRITICAL **: gdk_screen_get_display: assertion
`GDK_IS_SCREEN (screen)' failed

(xvidcap:16996): GLib-GObject-WARNING **: invalid (NULL) pointer
instance

(xvidcap:16996): GLib-GObject-CRITICAL **:
g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE
(instance)' failed

(xvidcap:16996): GLib-GObject-CRITICAL **: g_object_ref: assertion
`G_IS_OBJECT (object)' failed

(xvidcap:16996): Gdk-CRITICAL **: gdk_screen_get_display: assertion
`GDK_IS_SCREEN (screen)' failed

(xvidcap:16996): GLib-GObject-CRITICAL **: g_object_get_data: assertion
`G_IS_OBJECT (object)' failed

(xvidcap:16996): Gdk-CRITICAL **: gdk_screen_get_display: assertion
`GDK_IS_SCREEN (screen)' failed

(xvidcap:16996): GLib-GObject-CRITICAL **: g_object_get_data: assertion
`G_IS_OBJECT (object)' failed

(xvidcap:16996): Gdk-CRITICAL **: gdk_screen_get_display: assertion
`GDK_IS_SCREEN (screen)' failed

(xvidcap:16996): GLib-GObject-CRITICAL **: g_object_get_data: assertion
`G_IS_OBJECT (object)' failed

(xvidcap:16996): GLib-GObject-WARNING
**: /build/buildd/glib2.0-2.14.1/gobject/gsignal.c:2180: invalid
unclassed object pointer for value type `GdkScreen'

(xvidcap:16996): Gdk-CRITICAL **: gdk_screen_get_display: assertion
`GDK_IS_SCREEN (screen)' failed

(xvidcap:16996): GLib-GObject-CRITICAL **: g_object_get_data: assertion
`G_IS_OBJECT (object)' failed

(xvidcap:16996): GLib-GObject-WARNING
**: /build/buildd/glib2.0-2.14.1/gobject/gsignal.c:2180: invalid
unclassed object pointer for value type `GdkScreen'

(xvidcap:16996): GLib-GObject-CRITICAL **: g_object_unref: assertion
`G_IS_OBJECT (object)' failed