User`s guide

Table B-10. SDF_COMMENT_HDR (Comment record)
Field
Index
Binary
Index*
Field Name/Description
Data
Type
Range/
Units
1 1:2 recordType short 20
2 3:6 recordSize long variable
3 7:10 unique_record — byte offset from the beginning of the file to a
record containing an instrument-specific comment header. May
be ignored if recalled into a different type instrument.
long
−1:(2
31
) 1
4 11:14 headersize — size of the header portion of this record (excluding
the comment text).
long 24
5 15:18 comment_bytes — size of comment (in bytes). This size may be
smaller than the comment text area. If the size of the text is −1,
then the entire comment text area is valid (or until an end-of-text
marker is found).
long
−1:
recordSize−
headerSize
6 19:20 comment_type — type of comment data
0 = contains text
short 0:0
7 21:22 scope_type — tells which type of header the comment applies to
0 = entire file
1 = SDF_DATA_HDR
2 = SDF_VECTOR_HDR
3 = SDF_CHANNEL_HDR
4 = SDF_SCAN_STRUCT
short 0:4
8 23:24 scope_info — the index of the header associated with the
scope_type (−1 = no specific header)
short
−1:32767
Comment data starts here.
Standard Data Format (SDF)
B-24