2003-10-27  Michael Natterer  <mitch@gimp.org>

	* libgimpwidgets/gimphelpui.c: stop using the deprecated
	GtkTipsQuery widget for context help and implement the needed part
	of its functionality using a grab on a GtkInvisible. Should stop
	GIMP crashing with Gtk+ HEAD.

	* libgimpwidgets/gimphelpui.[ch] (gimp_context_help): requires
	a GtkWidget parameter now (finding the correct GdkScreen).

	* app/gui/help-commands.c (help_context_help_cmd_callback):
	changed accordingly.