Topic Title

These are DataCAD builtin function entry points.
Look at INC files for more builtin functions in the INC folder.

And look this:
http://www.datacad.com/ddn/downloads/New%20Builtins.txt

\Program Files\DataCAD 12\DCAL\INC\*.inc

if you installed the DCAL (I think)

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1. mysterious BUILTIN <number>: DataCAD builtin functions entry point

2. INC folder (\Program Files\DataCAD 12\DCAL\INC\*.inc)
look this, if you search more builtin function entry points

3. and look the link (I wrote it above), if you search "msg_OK" function:
http://www.datacad.com/ddn/downloads/New%20Builtins.txt
(New Dcal Routines for DataCAD Version 9.0)

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