Method
GObjectObjectnotify_by_pspec
since: 2.26
Declaration [src]
void
g_object_notify_by_pspec (
  GObject* object,
  GParamSpec* pspec
)
Description [src]
Emits a “notify” signal for the property specified by pspec on object.
This function omits the property name lookup, hence it is faster than g_object_notify().
One way to avoid using g_object_notify() from within the
class that registered the properties, and using g_object_notify_by_pspec()
instead, is to store the GParamSpec used with
g_object_class_install_property() 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]);
Available since: 2.26
Parameters
- pspec
- 
            Type: GParamSpecThe GParamSpecof a property installed on the class ofobject.The data is owned by the caller of the method.