possible bug in gtk--??????

[Sebastian Wilhelmi <wilhelmi ira uka de>]

Hi,

if I compile the following program (with Gtk---0.9.8 and gtk+-1.0.4), I
get a warning, that seems to be inevitable.

First the code:

#include <gtk--.h>

int main(int argc, char *argv[]) 
{
  Gtk_Main Main(&argc,&argv);
  Gtk_Window Window;
  Gtk_Button Button( "test" );
  connect_to_method( Button.released, (Gtk_Widget*)&Button,
		     &Gtk_Button::set_sensitive, false );
  Window.add( &Button );
  Button.show();
  Window.show();
  Main.run();
}

If I now press the button, I get:


** WARNING **: invalid cast from (NULL) pointer to `GtkObject'

** WARNING **: file gtkobject.c: line 1139 (gtk_object_get_data_by_id):
"object != NULL"

The corresponding trace is:

#0  gtk_object_get_data_by_id (object=0x0, data_id=103) at
gtkobject.c:1139
#1  0xef5ee064 in gtk_object_get_data (object=0x0, key=0x0) at
gtkobject.c:1166
#2  0xef722684 in Gtk_Window::set_focus_c_callback (o=0xeffff1c0,
p1=0x0) at ./../window.gen_h:58
#3  0xef63dd64 in gtk_window_marshal_signal_2 (object=0x312b8,
func=0xef7225b4 <Gtk_Window::set_focus_c_callback(_GtkWindow *,
_GtkWidget *)>, func_data=0x0, args=0xefffdad8) at gtkwindow.c:500
#4  0xef607544 in gtk_signal_real_emit (object=0x312b8, signal=0x2b918,
params=0xefffdad8) at gtksignal.c:1409

The problem is the p1=0x0 in #2, which is caused by #4 (calling #3 with
func_data=0x0), which is hardcoded there....

If I remember right, that hasn't happend with earlier versions of gtk--

Bye
Sebastian
-- 
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| Sebastian Wilhelmi, Institut fuer Rechnerentwurf und Fehlertoleranz, |
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