DeviceManager.connectDeviceChanged

gulong connectDeviceChanged(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.device.Device)))
   && (Parameters!T.length <  2 || (ParameterStorageClassTuple!T[1]  ==  ParameterStorageClass.none &&  is(Parameters!T[1] :  gdk.device_manager.DeviceManager)))
   &&  Parameters!T.length <  3)

Connect to DeviceChanged signal.

The ::device-changed signal is emitted whenever a device has changed in the hierarchy, either slave devices being disconnected from their master device or connected to another one, or master devices being added or removed a slave device.

If a slave device is detached from all master devices ([gdk.device.Device.getAssociatedDevice] returns null), its #GdkDeviceType will change to [gdk.types.DeviceType.Floating], if it's attached, it will change to [gdk.types.DeviceType.Slave].

Parameters

`callback`	signal callback delegate or function to connect `void callback(gdk.device.Device device, gdk.device_manager.DeviceManager deviceManager)` `device` the #GdkDevice that changed. (optional) `deviceManager` 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