The event handler method receives the following arguments:
sender
A WindowBase instance, which is the source of the event. This object will be passed to the handler function as the first argument.
args
A ControlModifiedEventArgs instance, which contains event data. This object will be passed to the handler function as the second argument.

The following code handles the windowClose event of the Window class.

JavaScript  Copy Code
var u = MindFusion.Common.UI; window.windowClose.addEventListener(windowCloseEventHandler); function windowCloseEventHandler(sender, args) {     sender.detach();     sender.dispose(); }

WindowBase Members
WindowBase Class
MindFusion.Common.UI Namespace