Problem running program

["Nathan Beaulieu" <dujavi gmail com>]

Hi,

Here is my environment:
OS: Win XP Pro
IDE: Eclipse/CDT
Compiler: gcc (cygwin)

I copied the code from
http://www.gtk.org/tutorial/c58.html#SEC-HELLOWORLDand I got it to
build the .exe but when I run it I get this:

(process:28052): GLib-GObject-WARNING **: invalid cast from `(null)' to
`<unknown>'
     3 [main] GtkTestProj 28052 handle_exceptions: Exception:
STATUS_ACCESS_VIOLATION
   362 [main] GtkTestProj 28052 open_stackdumpfile: Dumping stack trace to
GtkTestProj.exe.stackdump

I debugged the application and found that the program exited at this line
(55):
g_signal_connect (G_OBJECT (window), "delete_event",
             G_CALLBACK (delete_event), NULL);

Here is the main func:
int main( int   argc,
         char *argv[] )
{
   /* GtkWidget is the storage type for widgets */
   GtkWidget *window;
   GtkWidget *button;

   /* This is called in all GTK applications. Arguments are parsed
    * from the command line and are returned to the application. */
   gtk_init (&argc, &argv);

   /* create a new window */
   window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

   /* When the window is given the "delete_event" signal (this is given
    * by the window manager, usually by the "close" option, or on the
    * titlebar), we ask it to call the delete_event () function
    * as defined above. The data passed to the callback
    * function is NULL and is ignored in the callback function. */
   g_signal_connect (G_OBJECT (window), "delete_event",
             G_CALLBACK (delete_event), NULL);

   /* Here we connect the "destroy" event to a signal handler.
    * This event occurs when we call gtk_widget_destroy() on the window,
    * or if we return FALSE in the "delete_event" callback. */
   g_signal_connect (G_OBJECT (window), "destroy",
             G_CALLBACK (destroy), NULL);

   /* Sets the border width of the window. */
   gtk_container_set_border_width (GTK_CONTAINER (window), 10);

   /* Creates a new button with the label "Hello World". */
   button = gtk_button_new_with_label ("Hello World");

   /* When the button receives the "clicked" signal, it will call the
    * function hello() passing it NULL as its argument.  The hello()
    * function is defined above. */
   g_signal_connect (G_OBJECT (button), "clicked",
             G_CALLBACK (hello), NULL);

   /* This will cause the window to be destroyed by calling
    * gtk_widget_destroy(window) when "clicked".  Again, the destroy
    * signal could come from here, or the window manager. */
   g_signal_connect_swapped (G_OBJECT (button), "clicked",
                 G_CALLBACK (gtk_widget_destroy),
                             G_OBJECT (window));

   /* This packs the button into the window (a gtk container). */
   gtk_container_add (GTK_CONTAINER (window), button);

   /* The final step is to display this newly created widget. */
   gtk_widget_show (button);

   /* and the window */
   gtk_widget_show (window);

   /* All GTK applications must have a gtk_main(). Control ends here
    * and waits for an event to occur (like a key press or
    * mouse event). */
   gtk_main ();

   return 0;
}

Help!
I want to use gtk for a cross-platform program I'm making.

Thanks,
Nathan