Button.onSetFocus

Availability

Flash Player 6.

Usage

my_btn.onSetFocus = function(oldFocus){
  // your statements here
}

Parameters

oldFocus The object to lose keyboard focus.

Returns

Nothing.

Description

Event handler; invoked when a button receives keyboard focus. The oldFocus parameter is the object that loses the focus. For example, if the user presses the Tab key to move the input focus from a text field to a button, oldFocus contains the text field instance.

If there is no previously focused object, oldFocus contains a null value.