Yes, someone (in another forum) suggested them, but my test code had _Screen.Height and _Screen.ViewPortHeight return the same values.

***************************************************************************************
Set Status Bar On
Set SysMenu On
Show Window Standard

? "Menu", "Toolbar", "Status Bar", "Height", "ViewPortHeight"
Do Disp_Stat
Set SysMenu Off
Do Disp_Stat
Hide Window Standard
Do Disp_Stat
Set Status Bar Off
Do Disp_Stat

********************************************

Set Status Bar On
Set SysMenu On
Show Window Standard

********************************************

Procedure Disp_Stat
? Set("SysMenu"), IIF(WVisible("Standard"),"Shown","Hidden"), Set("Status Bar"), _screen.height, _screen.viewportheight
EndProc
***************************************************************************************


>Have you explored _SCREEN.ViewportHeight and ViewportWidth? They're not documented for _Screen (they are documented for Form Objects) but they seem to give what you want.
>
>>Does anyone have (or know of) a formula/calculation to determine the height and width of the VFP Desktop area. This would be the space below the menu bar (if any) and above the status bar (if turned on).
>>