[Info-vax] Howto can I call the undocumented "set watch/class=dir" in an own program and fetch the output in my program?

[Brian Schenkenberger]

On 2023-09-22 07:08:56 +0000, Eberhard Heuser said:

> Hi,
> 
> for my project a need the information, what file operation (i.e. 
> crea/dir or remove file) is been issued from an interactive terminal 
> process.
> I've seen that the "undocumented" dcl-command "set watch" just 
> broadcasts this information to the terminal I need. I did look into the 
> source and found that this program only modifies a system parameter 
> called PIO$GW_DFPROT and CLASS_FLAGS[x], where x = XQP$_MAJOR_FUNC, 
> XQP$_CNTRL_FUNC, XQP$_ATTRIBUTE,XQP$_DIR_OPS, XQP$_DUMP, XQP$_QUOTA or 
> XQP$_PROTECTION are accessed.
> It is unclear for me if it is possible to get access to these infos in 
> an own written program. So I'm thankful for any ideas where to look at.
> 
> Eberhard

Sounds like something interesting I need to hack!