pasteboard-id
    OpenVMS usage:identifier
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    Specifies the pasteboard from which to retrieve the character.
    The pasteboard-id argument is the address of an unsigned longword
    that contains the pasteboard identifier.
    The pasteboard identifier is returned by SMG$CREATE_PASTEBOARD.
 character-code
    OpenVMS usage:byte_unsigned
    type:         byte (unsigned)
    access:       write only
    mechanism:    by reference
    Returned character code. The character-code argument is the
    address of an unsigned byte into which is written the character's
    ASCII code.
 rendition
    OpenVMS usage:byte_unsigned
    type:         byte (unsigned)
    access:       write only
    mechanism:    by reference
    Receives the rendition code associated with the character code
    returned by the character-code argument. The rendition argument
    is the address of an unsigned byte into which is written the
    rendition code.
 user-rendition
    OpenVMS usage:byte_unsigned
    type:         byte (unsigned)
    access:       write only
    mechanism:    by reference
    Receives the user rendition code associated with the character
    code returned by the character-code argument. The user-rendition
    argument is the address of an unsigned byte into which is written
    the user rendition code.