Check FileExistance in Hepax

[sugarfox]

Hi!
I wrote a new survey package on the 41 (go41cx emulator) and used the hepax system. I integrated a littel Point Management which is based on a file for each Point. The PointNumbers are represented by the filenames and inside I store x/y.
So I have functions for set, get list and delete pointinformation.
But I need a function to check if a point (i.e. a file) exists or not, to avoid errors when I call Pointinformation in my cogo-programs.
Any Suggestions?

Best,
Johannes

PS: If someone is interested, I will post the Manual here, hepax file and manual were sent to Mr. Farlow too.