Segmentation fault in code - possible bug?

[Joseph Turner <joeman leederville net>]

Hello,
In my quest to figure out why this gtksheet stuff isn't working,
I've been looking at the gtkitementry stuff, which has eventually led
me to the gtkentry widget.

I've created a bit of code below...

#include <gtk/gtk.h>

static GtkContainerClass *parent_class = NULL;

void
quit ()
{
g_print("quiting\n");
  gtk_main_quit();
}


void my_destroy( GtkWidget *child )
{
  g_print("my_destroy: destroying a %s\n", G_OBJECT_TYPE_NAME (child));
  gtk_widget_destroy (child);
}

int close_it(GtkWidget *but, GtkWidget *shet)             
{
 if (GTK_IS_ENTRY(shet) && GTK_IS_WIDGET(shet))
   {
    g_print("destroying entry\n");
    gtk_widget_destroy(shet);
    //gtk_widget_ref(shet);
    //shet = NULL;
    //gtk_entry_finalise(shet);
   }
}


int main ( int argc, char *argv[])
{    
GtkWidget *window;
GtkWidget *sheet;
GtkWidget *vbox;
GtkWidget *entry;
GtkWidget *button;

gtk_init (&argc, &argv);

window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

entry = gtk_entry_new();

button = gtk_button_new();

vbox = gtk_vbox_new(TRUE, 1);
gtk_container_add(GTK_CONTAINER(window), vbox);



gtk_widget_set_usize(GTK_WIDGET(window), 900, 600);
gtk_signal_connect (GTK_OBJECT (window), "destroy",
                      GTK_SIGNAL_FUNC (quit), NULL);

g_signal_connect_after (G_OBJECT (button), "clicked", G_CALLBACK (close_it), ent
ry);

gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, TRUE, 0);
gtk_box_pack_end(GTK_BOX(vbox), entry, FALSE, TRUE, 0);

gtk_widget_show_all(window);


gtk_main();
return(0);
}


When I run the resulting program and press the button at the top of the window
it gets rid of the gtk_entry. If I keep pressing this button, I get a
segmentation fault.

If I replace the entry widget with a button say, (and other code as well)
I can keep pressing the top button without any segmentation fault.

Something buggy with gtk entry? Or am I just doing something really stupid?

Tried this with versions 2.2.1 and 2.2.4 and also tried on another machine.

Cheers

Joe
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