std-sys-dosbased-p | ![]() |
Predicate if the current AutoCAD version is running under a DOS based operating system, like DOS, MSWIN or OS/2. to be able to use command under a shell.
Implemented if (GETVAR "COMSPEC")
is available.
Cached version
This function is only called once, the result is stored in the global symbol *SYS-DOSBASED*
. All subsequent calls just return a result dependent on the value of this symbol.
None
T or nil.
Works with the global symbol *SYS-DOSBASED*.
Defined in STDINIT