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List:       gtk-app-devel
Subject:    Explanation of errors when destroying gtk_dialog
From:       Kent Schumacher <kent () structural-wood ! com>
Date:       1999-07-16 13:25:14
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Hi,

Attempting to send a destroy signal to a gtk_dialog results in the following errors being output.

Gtk-CRITICAL **: file gtkstyle.c: line 535: assertion `style != NULL' failed.

Gtk-CRITICAL **: file gtkcontainer.c: line 1230: assertion `node != NULL' failed.

Gtk-WARNING **: gtk_signal_disconnect_by_func(): could not find handler (0x80515F8) contai
ning data (0x0)

Gtk-CRITICAL **: file gtkstyle.c: line 574: assertion `style != NULL' failed.

The dialog appears to be destroyed, but I'm a bit concerned about the errors.  I've posted
code - I would be very interested in someone pointing out where the errors are.

Thanks,
Kent


#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>

#include <gtk/gtk.h>

static void destroy_cb(GtkWidget *widget) {
   gint        result;
   GdkEventAny event;

   gtk_signal_emit_by_name(GTK_OBJECT(widget),"destroy",&event,&result);
}

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

   gtk_init(&argc,&argv);

   window   = gtk_window_new(GTK_WINDOW_TOPLEVEL);

   gtk_signal_connect(GTK_OBJECT(window),"delete_event",
      GTK_SIGNAL_FUNC(gtk_main_quit),NULL);

   dial     = gtk_dialog_new();
   button   = gtk_button_new_with_label("Destroy the dialog");

   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dial)->action_area),button,TRUE,TRUE,0);

   gtk_signal_connect_object(GTK_OBJECT(button),"clicked",
      GTK_SIGNAL_FUNC(destroy_cb),GTK_OBJECT(dial));


   gtk_widget_show(button);
   gtk_widget_show(dial);

   gtk_widget_show(window);

   gtk_main();

   return(1);
}






--
Kent Schumacher

Structural Wood Corporation
4000 Labore Rd.
St. Paul, MN 55110

Phone: (651) 426-8111
Fax: (651) 426-6859
e-mail: kent@structural-wood.com




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