[Glade-users] Closing a dialog window

On Sat, 2005-01-29 at 20:52 +0000, Keith Sharp wrote:
On Sat, 2005-01-29 at 12:34 +0000, Chris Morrison wrote:
Hi all,

This is probably more of a GNOME programming question than a Glade one
but here goes.

I am writing a small program in Glade that displays a dialog window on
the screen with a Close button. Clicking the close button closes the
dialog and ends the program.

I have placed the following code in the signal handler for the Close
button's click event.

void on_closebutton_clicked(GtkButton *button, gpointer window_ptr)
  GtkDialog *window = GTK_DIALOG(window_ptr);

However, when I click on the Close button nothing happens and the
following message is displayed in the terminal window.

(my-program:5534): Gtk-CRITICAL **: file gtkwidget.c: line 1911
(gtk_widget_destroy): assertion `GTK_IS_WIDGET (widget)' failed

I am a newbie to Linux programming as you can tell, I have just migrated
from Micro$oft Windoze.

Any pointers (no pun intended) would be appreciated.

Two things:

1) How are you connecting the callback, which you show above, to the
object and the signal?  I assume you have a call to g_signal_connect
somewhere in your code.  Can you show us some more of your code?

g_signal_connect ((gpointer) closebutton, "clicked", G_CALLBACK
(on_closebutton_clicked), NULL);

This was pasted from the interface.c file.

The signals are all automatically connected by Glade when you create the
UI. I have just modified the empty function that is created in the
callbacks.c file.

2) Consider using gtk_dialog_run () and then just check the return code,
there is an example in the API docs:



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