A callback method for activating or deactivating focus in the browser.
<oBrowser>:FocusChange(<oEvent>) Æ NIL
|<oEvent>||A event that contains information about it whether the browser gets or loses focus.|
bBrowser:FocusChange() is a callback method that is called by the browser whenever it loses the focus to another control or gets it from another control.
The method examines whether a method ControlFocusChange() is implemented in the owner of the browser and invokes it with an event of class FocusChangeEvent.
The method ControlFocusChange() is already implemented in the class Window after Visual Objects 2.7a.