Problem: hiding window

[Deependra Shekhawat <openbysource yahoo co in>]

Hello friends,

I want to hide a window when user clicks either on the
close button or press the close (CROSS) on the
top-right of every window.
Here is my code:

GtkWidget *window1;
GtkWidget *butt_close;

g_signal_connect((gpointer)butt_close,"clicked",                   
G_CALLBACK (on_butt_close_clicked),   (gpointer)
window1);

g_signal_connect ((gpointer) window1, "destroy",
            G_CALLBACK (on_butt_close_clicked), (gpointer)
window1);

void on_butt_close_clicked(GtkButton *button,gpointer
user_data)
{
   gtk_widget_hide((GtkWidget *)user_data);
}

The window hides up when I click the close button but
when I try and hide it through clicking the close
button on the top right of the window it gives the
following error:

(stepper_ui:15295): GLib-GObject-CRITICAL **:
g_object_ref: assertion `G_IS_OBJECT (object)' failed

(stepper_ui:15295): Gtk-CRITICAL **:
gtk_widget_queue_resize: assertion `GTK_IS_WIDGET
(widget)' failed

(stepper_ui:15295): GLib-GObject-WARNING **: instance
of invalid non-instantiatable type `(null)'

(stepper_ui:15295): GLib-GObject-CRITICAL **:
g_signal_emit_valist: assertion `G_TYPE_CHECK_INSTANCE
(instance)' failed
(stepper_ui:15295): GLib-GObject-CRITICAL **:
g_object_notify: assertion `G_IS_OBJECT (object)'
failed

(stepper_ui:15295): GLib-GObject-CRITICAL **:
g_object_unref: assertion `G_IS_OBJECT (object)'
failed

(stepper_ui:15295): GLib-GObject-CRITICAL **:
g_object_ref: assertion `G_IS_OBJECT (object)' failed

(stepper_ui:15295): Gtk-CRITICAL **:
gtk_widget_queue_resize: assertion `GTK_IS_WIDGET
(widget)' failed

(stepper_ui:15295): GLib-GObject-WARNING **: instance
of invalid non-instantiatable type `(null)'

(stepper_ui:15295): GLib-GObject-CRITICAL **:
g_signal_emit_valist: assertion `G_TYPE_CHECK_INSTANCE
(instance)' failed
(stepper_ui:15295): GLib-GObject-CRITICAL **:
g_object_notify: assertion `G_IS_OBJECT (object)'
failed

(stepper_ui:15295): GLib-GObject-CRITICAL **:
g_object_unref: assertion `G_IS_OBJECT (object)'
failed

(stepper_ui:15295): GLib-GObject-WARNING **: invalid
uninstantiatable type `(null)' in cast to
`GtkTextView'

(stepper_ui:15295): Gtk-CRITICAL **:
gtk_text_view_get_buffer: assertion `GTK_IS_TEXT_VIEW
(text_view)' failed

(stepper_ui:15295): Gtk-CRITICAL **:
gtk_text_buffer_get_start_iter: assertion
`GTK_IS_TEXT_BUFFER (buffer)' failed

(stepper_ui:15295): Gtk-CRITICAL **:
gtk_text_buffer_get_end_iter: assertion
`GTK_IS_TEXT_BUFFER (buffer)' failed

(stepper_ui:15295): Gtk-CRITICAL **:
gtk_text_buffer_insert: assertion `GTK_IS_TEXT_BUFFER
(buffer)' failed

(stepper_ui:15295): GLib-GObject-WARNING **: invalid
uninstantiatable type `(null)' in cast to
`GtkTextView'

(stepper_ui:15295): Gtk-CRITICAL **:
gtk_text_view_set_buffer: assertion `GTK_IS_TEXT_VIEW
(text_view)' failed
s

I suppose that I am hiding a window from it's own
destroy event.

Regards

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