Re: Freeing resources used in dialog

[Owen Taylor <owt1 cornell edu>]

"David M. Cook" <davecook@hotmail.com> writes:

> I've created a dialog with an hbox, pixmap, label and button.  When
> I free up resources in my callback, do I have to free up each of these
> in turn, or will destroying the dialog do this for me?  I'm using
> gtk_destroy_widget(gtk_widget_get_toplevel(button)) to destroy the
> dialog in my callback.

yes, no (yes), yes, yes.

That is, all widgets will be properly accounted for, but you
have to be a bit careful about the GdkPixmap (not the GtkPixmap)
you are using.

If you are only ever going to use the GdkPixmap in a single
GtkPixmap, you can do:

  GdkPixmap *pixmap = gdk_pixmap_create_from_xpm (...);
  GtkPixmap *pwidget = gtk_pixmap_new (pixmap, FALSE);
  gdk_pixmap_unref (pixmap);

The GdkPixmap is created with a reference count of 1. The
GtkPixmap does _not_ take over that initial reference count,
but adds to it. So you are responsible for making sure that
initial reference gets released at some point. 

Regards,
                                        Owen