private function videoDisplay_creationComplete():void
{
    //titleWindow = PopUpManager.createPopUp(this, Dialog, true) as TitleWindow;
    //PopUpManager.centerPopUp(titleWindow);

    var cam:Camera = Camera.getCamera();
    if (cam != null)
    {
        cam.addEventListener(StatusEvent.STATUS, statusHandler);
    }
}
function statusHandler(event:StatusEvent):void
{
    if(event.code == "Camera.Unmuted") // "Camera.Muted" or "Camera.Unmuted"
    trace("OK");// good to go
    else
    trace("NOK");// permission denied
    titleWindow = PopUpManager.createPopUp(this, Dialog2, true) as TitleWindow;
    PopUpManager.centerPopUp(titleWindow);
}
Security.showSettings(SecurityPanel.PRIVACY);