Goa-1.0 ▶ Goa ▶ ObjectManagerClient ▶ SignalSignatures

Emitted when one or more D-Bus properties on proxy changes. The local cache has already been updated when this signal fires. Note that both changed_properties and invalidated_properties are guaranteed to never be null (either may be empty though).

This signal exists purely as a convenience to avoid having to connect signals to all interface proxies managed by manager.

This signal is emitted in the thread-default main context (see GLib.MainContext.push_thread_default) that manager was constructed in.

Emitted when a D-Bus signal is received on interface_proxy.

This signal exists purely as a convenience to avoid having to connect signals to all interface proxies managed by manager.

This signal is emitted in the thread-default main context (see GLib.MainContext.push_thread_default) that manager was constructed in.

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

Note that getting this signal doesn’t itself guarantee that the value of the property has actually changed. When it is emitted is determined by the derived GObject class. If the implementor did not create the property with GObject.ParamFlags.EXPLICIT_NOTIFY, then any call to g_object_set_property() results in ::notify being emitted, even if the new value is the same as the old. If they did pass GObject.ParamFlags.EXPLICIT_NOTIFY, then this signal is emitted only when they explicitly call g_object_notify() or g_object_notify_by_pspec(), and common practice is to do that only when the value has actually changed.

This signal is typically used to obtain change notification for a single property, by specifying the property name as a detail in the g_signal_connect() call, like this:

g_signal_connect (text_view->buffer, "notify::paste-target-list",
                  G_CALLBACK (gtk_text_view_target_list_notify),
                  text_view)
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It is important to note that you must use [canonical parameter names][class@GObject.ParamSpec#parameter-names] as detail strings for the notify signal.