Re: gchar * properties

["Tadej Borovšak" <tadeboro gmail com>]

> Widgets have some properties of type gchar*. For example GtkLabel has the "label" property. What happens when I use
> g_object_set(lable_widget, "label", some_gchar_ptr, NULL);? Does the class just assign 'some_gchar_ptr' to the 'label'
> member or does it allocate memory and copy the content pointed to by 'some_gchar_ptr'?

As far as I my experience go, it is usually safe to assume that
g_object_set( widget, "prop", value, NULL ) does the same thing as
gtk_widget_set_prop( widget, value ). In the case of gchar * values,
the value gets it's own copy of a string via g_strdup.

> GtkWidget has the 'name' property (of type gchar*) which default value is NULL. May I use this property to give a name
> to widgets arbitrarily? Is this property used internally by GTK, is it safe to use it? And what happens with
> g_object_set(widget, "name", ... ? Is this just a copy of the pointer? Is there anywhere a policy for this kind of
> assignments?

  /* The widget's name. If the widget does not have a name
   *  (the name is NULL), then its name (as returned by
   *  "gtk_widget_get_name") is its class's name.
   * Among other things, the widget name is used to determine
   *  the style to use for a widget.
   */
  gchar *GSEAL (name);

This is a copy from gtkwidget.h file. I cannot say if it is safe to
change that, but you can always try and see what happens;)

-- 
Tadej Borovšak
00386 (0)40 613 131
tadeboro gmail com
tadej borovsak gmail com