void UserUnitsSet ( double  countsPerUserUnit  ) 

Description:
Allows you to change your default units from encoder counts some other unit by supplying the number of encoder counts in said "User Unit."
Parameters:
countsPerUserUnit The number of Encoder Counts in desired User Unit
Sample Code:
  //Assuming there are 417 Encoder counts per Inch.
  axis->UserUnitsSet(417);
  printf("All positions in Axis are now returned in Inches rather than Encoder counts.\n");
See also:
UserUnitsGet