Arguments

hlpfile  (optionally)string, the filename of the help file (.chm or .hlp)

hlptopic  (optionally) string, the topic to be shown

option  (optionally) actually not supported in BricsCAD LISP; is a flag to control CHM/HLP viewer

Return

T if help was successfully opened, NIL otherwise

Example

(help "PipeHelp.chm" "PipeHelp")

(help "www.cadtools.de/ProgramHelp/index.html")
(help "www.cadtools.de/ProgramHelp/index.html" "/topic")

important for all cases :
as the (help) function can use a second string argument ("content index"), it is important how to handle it :
BricsCAD and AutoCAD just combine the first string (the main help URL) and the second string together;
so it is important that the second (optional) string then contains the delimiter, like the "/" character

(help "www.cadtools.de/ProgramHelp/index.html")
(help "www.cadtools.de/ProgramHelp" "/index.html")
works

(help "www.cadtools.de/ProgramHelp/index.html/")
does not work

So to have context-specific pages, add the separator to the second "context" string.

Remarks

see (setfunhelp) function on how to register a help topic for a custom command