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

The following code handles the focus event for a Window instance.

JavaScript  Copy Code
// Handle the focus event. window1.focus.addEventListener(handleFocusEvent); // This is the handler function of the wndow1 focus event. // The sender argument is a reference to the Window. function handleFocusEvent(sender) {       if(sender.id == "window1")     {      //do something    } }

Control Members
Control Class
MindFusion.Common Namespace