If you look into source code for setinputmask method in the textbox base class, you'll see that it uses GETWORDCOUNT() function which doesn't exists in VFP6. You can replace it with similar function (name is different) from foxtools.fll.

>Hi,
>I have vfp 6.0 sp5 and am trying to run the CalendarDemo form from MegaFox1002
>but get the following error "function not impleted" In debug, the error
>comes from the txtcCompany textbox from the setinputmask event.
>??
>Any help would be appreciated
>Thanks
>Steve Elster