show and hide a window

[Peter Van Osta <pvosta unionbio-eu com>]

Hi,

I wan to hide and show a window, but simply doing a "gtk_widget_show"
after hiding the window gives the following error:

Gtk-CRITICAL **: file gtkwidget.c: line 1428 (gtk_widget_show):
assertion `GTK_IS_WIDGET (widget)' failed.

I thought that simply hiding the Window/widget did not destroy it and I
catch the "destroy" signal.

Peter