Arguments

 

lblnam

   OpenVMS usage:address
   type:         longword (unsigned)
   access:       read only
   mechanism:    by reference
   ANSI label to be processed. The lblnam argument is the address
   of a longword containing the label. On input, the label passed
   is either the VOL1 or HDR1 label read from the magnetic tape; on
   output of labels, the value of this field is 0. The type of label
   passed is determined by type.
 

uic

   OpenVMS usage:uic
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   UIC of the user performing the operation. The uic argument is a
   longword containing the UIC.
 

std_version

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Decimal equivalent of the ANSI standard version read from the
   VOL1 label. The std_version argument is a longword containing the
   standard version number.
 

access_char

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Accessibility character specified by the user. The access_char
   argument is a byte containing the accessibility character used
   for the output of labels.
 

access_spec

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Value specifying whether the accessibility character passed in
   access_char was specified by the user.

   The access_spec argument is a byte containing one of the
   following values:

   Value            Meaning

   MTA$K_           Yes
   CHARVALID
   MTA$K_NOCHAR     No

   This argument is used only for the output of labels.
 

type

   OpenVMS usage:longword_unsigned
   type:         longword (unsigned)
   access:       read only
   mechanism:    by value
   Type of accessibility field to process.

   The type argument is a byte containing one of the following
   values:

   Value            Meaning

   MTA$K_INVOL1     Input a VOL1 label
   MTA$K_INHDR1     Input a HDR1 label
   MTA$K_OUTVOL1    Output a VOL1 label
   MTA$K_OUTHDR1    Output a HDR1 label