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

The following code handles the dragEnd event of a Window instance and refreshes the Window if it was resized:

JavaScript  Copy Code
window.dragEnd.addEventListener(windowEventHandler); function windowEventHandler(sender, args) {  if(args.action == ui.InteractionType.Resize)   {        sender.refresh();   }  }

Window Members
Window Class
MindFusion.Common.UI Namespace