Common Lexical Functions

$ vbl = F$GETDVI( dev_name, keyword )



“dev_name” is a valid device name

“keyword” is a quoted string

Examples:

$ FBLK = F$GETDVI( “DUA0”,”FREEBLOCKS”)

$ MNTD = F$GETDVI( “DKA500”,”MNT”)

$ DVNM := DUA0:

$ VLNM := VOLNAM

$ VNAM = F$GETDVI( DVNM, VLNM )

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The F$GETDVI() function is useful for retrieving information about system devices and disk/tape volumes.

The examples show some of the information that can be returned by F$GETDVI(). Notice that either literal strings or symbols can be used as arguments to DCL lexical functions.