std-sys-dos-p | ![]() |
Predicate if the current AutoCAD version is a version for DOS, if it's running under MS DOS or a similar operating system (PC-DOS by IBM or PT-DOS) or if it's running in a DOS box under Windows.
Cached version
This function is only called once, the result is stored in the global symbol *SYS-DOS*
. All subsequent calls just return a result dependent on the value of this symbol.
None
T or nil.
Works with the global symbol *SYS-DOS*
.
Defined in STDINIT