ObjectG.notifyByPspec

Emits a "notify" signal for the property specified by pspec on object.

This function omits the property name lookup, hence it is faster than gobject.object.ObjectG.notify.

One way to avoid using gobject.object.ObjectG.notify from within the class that registered the properties, and using gobject.object.ObjectG.notifyByPspec instead, is to store the GParamSpec used with gobject.object_class.ObjectClass.installProperty inside a static array, e.g.:

typedef enum
{
  PROP_FOO = 1,
  PROP_LAST
} MyObjectProperty;

static GParamSpec *properties[PROP_LAST];

static void
my_object_class_init (MyObjectClass *klass)
{
  properties[PROP_FOO] = g_param_spec_int ("foo", NULL, NULL,
                                           0, 100,
                                           50,
                                           G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
  g_object_class_install_property (gobject_class,
                                   PROP_FOO,
                                   properties[PROP_FOO]);
}

and then notify a change on the "foo" property with:

g_object_notify_by_pspec (self, properties[PROP_FOO]);