FrameClock.connectUpdate

gulong connectUpdate(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.frame_clock.FrameClock)))
   &&  Parameters!T.length <  2)

Connect to Update signal.

This signal is emitted as the first step of toolkit and application processing of the frame. Animations should be updated using [gdk.frame_clock.FrameClock.getFrameTime]. Applications can connect directly to this signal, or use [gtk.widget.Widget.addTickCallback] as a more convenient interface.

Parameters

`callback`	signal callback delegate or function to connect `void callback(gdk.frame_clock.FrameClock frameClock)` `frameClock` 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