Notify-Mouse
When this style is set, the Push-Button control fires the following events: MSG-MOUSE-ENTER, MSG-MOUSE-EXIT.
 
Example - Define a push-button that fires mouse events
screen section.
...
  03 screen-1-pb-3 Push-Button
     line 12.1
     column 15.2
     size 10.7 cells 
     lines 5.3 cells 
     id 3
     title "Go..."
     notify-mouse
     .