Contains true (.T.) if the user is using FoxPro for Macintosh or Microsoft Visual FoxPro for Macintosh.
Syntax
_MAC = lExpression
Remarks
_MAC contains false (.F.) for any other platform version of FoxPro (Visual FoxPro for Windows, FoxPro for Windows, FoxPro for MS-DOS, or FoxPro for UNIX).
The value contained in _MAC cannot be changed with STORE or =.