(SYSLIB) Programming Reference Manual - Public Support Login ...

OUTPUT_ATTRIBUTE_TABLE_WORD_LENGTH:
PLUS Attribute: 18-bit integer
SAR$ ATREAD
The number of valid entries in the attribute table. (Each entry is one word.) A value
of zero indicates there is no output attribute table.
INPUT_TEXT_BUFFER_ADDRESS:
PLUS Attribute: word pointer
The address of the input text buffer into which ATREAD places the character text of
the image read.
INPUT_TEXT_BUFFER_BYTE_LENGTH:
PLUS Attribute: 18-bit integer
The length in 9-bit bytes of the input text buffer.
INPUT_ATTRIBUTE_TABLE_ADDRESS:
PLUS Attribute: word pointer
The address of the input attribute table into which ATREAD places the attributes
describing the character text of the image read. This field is undefined if the
INPUT_ATTRIBUTE_TABLE_WORD_LENGTH is zero.
INPUT_ATTRIBUTE_TABLE_WORD_LENGTH:
PLUS Attribute: 18-bit integer
The length in words of the input attribute table. A length of zero indicates there is no
input attribute table.
19.1.1.2. Optional Information for ATREAD Procedures
The calling program may optionally set the following fields of the ATREAD packet. The
default values are obtained by zero-filling the ATREAD packet before placing any
information in the packet.
OUTPUT_CHARACTER_TYPE
PLUS Attribute: 6-bit status
The character set type of the image to be output by ATREAD:
S'ASCII_ISO' ASCII/ISO 9-bit characters (default).
S'ACD' Attributed character data (ACD).
A value of any ASCII-like character set type in Table H–1.
7833 1733–004 19–3