Keymap.connectStateChanged

gulong connectStateChanged(T)(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] :  gdk.keymap.Keymap)))
   &&  Parameters!T.length <  2)

Connect to StateChanged signal.

The ::state-changed signal is emitted when the state of the keyboard changes, e.g when Caps Lock is turned on or off. See [gdk.keymap.Keymap.getCapsLockState].

Parameters

`callback`	signal callback delegate or function to connect `void callback(gdk.keymap.Keymap keymap)` `keymap` 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