Settings.connectChanged

gulong connectChanged(T)(string detail =  null,  T callback,  Flag!"After" after =  No.After) if (isCallable!T
    &&  is(ReturnType!T ==  void)
   && (Parameters!T.length <  1 || (ParameterStorageClassTuple!T[0]  ==  ParameterStorageClass.none &&  is(Parameters!T[0]  ==  string)))
   && (Parameters!T.length <  2 || (ParameterStorageClassTuple!T[1]  ==  ParameterStorageClass.none &&  is(Parameters!T[1] :  gio.settings.Settings)))
   &&  Parameters!T.length <  3)

Connect to Changed signal.

The "changed" signal is emitted when a key has potentially changed. You should call one of the [gio.settings.Settings.get] calls to check the new value.

This signal supports detailed connections. You can connect to the detailed signal "changed::x" in order to only receive callbacks when key "x" changes.

Note that settings only emits this signal if you have read key at least once while a signal handler was already connected for key.

Parameters

`detail`	Signal detail or null (default)
`callback`	signal callback delegate or function to connect `void callback(string key, gio.settings.Settings settings)` `key` the name of the key that changed (optional) `settings` the instance the signal is connected to (optional)
`after`	Yes.After to execute callback after default handler, No.After to execute before (default)

Returns

Signal ID