hi everyone,

what is the problem of following code? i can open and get the values, but can't write the new value back to the file:

there is only 5 bytes in Number.dat: " 1234".

FileID=fopen("Number.dat")
if FileID <> -1 then
  tempStr=fgets(FileID, 40)
  tempNum=val(tempStr)
  tempStr=padl(allt(str(tempNum+1)), 5, " ")
  fwrite(FileID, tempStr) && return 0 at this line, i.e. can't write
endif

I have tried fwrite(FileID, "tempStr") and fwrite(FileID, &tempStr), both not work.

thanks in advance!