I came across a skill program (DT_rotator.il) that is used to rotate silkscreen.
Within this program is the following line of code:
(unless (setq TempDir (_DTL_UTILS_get_temp))
When I run the program, I am getting the following error message:
*Error* toplevel: undefined variable - _DTL_UTILS_get_temp
Can someone please explain what these '_********' commands / variables are?