[Info-vax] SYS$SET_DEVICE

[Stephen Hoffman]

On 2013-02-21 19:55:19 +0000, Steven Schweda said:

> ...I had some dim hope of setting a volume label from a C program...

sys$set_device doesn't have the ability to volume labels.   It's 
definitely not equivalent to a hypothetical "$setdvi" call, if that's 
what you're looking for here.

AFAIK, the only (official) choice for changing a volume label is to 
spawn and invoke the SET VOLUME /LABEL command, or — for a more 
destructive approach — spawn the INITIALIZE command or call the 
$init_vol system service.  If a supported API isn't an issue, then 
zapping the ODS data structures directly is entirely possible, if 
you're inclined to rummage around.



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