When n = 1 this causes buttons to take the focus in response to Tab keys. Normally only input controls will take the focus and buttons will need to be clicked on. When n is missing or 0 buttons will not take the focus (the default). The SPECIAL>BUTTONFOCUS|1 command will cause the Venapp to behave more like a standard Windows dialog box would.
NOTE The BUTTONFOCUS command has no effect on the Macintosh.