SignalGroup


Object Hierarchy:

Object hierarchy for SignalGroup

Description:

[ CCode ( type_id = "G_TYPE_SIGNAL_GROUP" ) ]
[ Version ( since = "2.72" ) ]
public class SignalGroup : Object

SignalGroup manages to simplify the process of connecting many signals to a Object as a group.

As such there is no API to disconnect a signal from the group.

In particular, this allows you to:

  • Change the target instance, which automatically causes disconnection of the signals from the old instance and connecting to the new instance.
  • Block and unblock signals as a group
  • Ensuring that blocked state transfers across target instances.

One place you might want to use such a structure is with GtkTextView and GtkTextBuffer. Often times, you'll need to connect to many signals on GtkTextBuffer from a GtkTextView subclass. This allows you to create a signal group during instance construction, simply bind the GtkTextView:buffer property to target and connect all the signals you need. When the GtkTextView:buffer property changes all of the signals will be transitioned correctly.


Namespace: GLib
Package: gobject-2.0

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