Slider .change question

Question

Hello. I'm need a real-time working slider, like a opacity or fill layer sliders. I'm trying to resolve this problem, but unfortunately i have no succes ) I experimenting with suspendHistory, activeHistoryState, PurgeTarget.HISTORYCACHES, app.refresh(), onChanging (ScriptUI slider), but it's all work bad.
I have simply code like this:
main.js:
(function () {
    'use strict';
    var csInterface = new CSInterface();
    function init() {
        themeManager.init();
        $("#slider-opacity").change(function () {
           var VAL = $('#slider-opacity').val();
            csInterface.evalScript("setOpacity('" + VAL + "')");
    init();
hostscript.jsx
function setOpacity(VAL) {
    app.activeDocument.activeLayer.opacity = VAL;
Have you any ideas how resolve this ? This is possible ? Thanks alot.
Sorry for my bad english.

Answer 1

Hi Davide,
Let me explain how i need. When i move original photoshop sliders such as opacity or brightness/contrast in adjustment layers - image redraw each iteration, and this not overload cpu or ram. But in my example image redraw only when occurs .mouseup event, and plural apply functions produce delay.
Do I clear explain my idea?
I think, maybe need use PSEvent call or something like C++ SDK, in order to control original photoshop sliders, instead of apply function each iteration when i move my slider.