SONWriteMarkBlock

  SONWRITEMARKBLOCK writes data to a marker channel

  Implemented through SONWriteMarkBlock.dll

  RET=SONWRITEMARKBLOCK(FH, CHAN, TIMESTAMPS, MARKERS, COUNT)
  INPUTS: FH the SON file handle
          CHAN the target channel
          TIMESTAMPS a vector of int32 timestamps for the markers
                    which should be at least COUNT in length
          MARKERS the 4xCOUNT array of uint8 marker values, one set of
                    4 for each timestamp
          COUNT the number of marker items to write to the buffer

  Returns zero or a negative error code.

  For efficient use of disc space, COUNT should be  a multiple of 
  (BUFSIZE bytes - 20)/4 , where BUFSIZE is supplied in a prior call to
  SONSETEVENTCHAN (20 is the size of the block header on disc)

  see CED documentation

  See also SONSETEVENTCHAN, SONWRITEEVENTBLOCK, SONWRITEEXTMARKBLOCK

  Author:Malcolm Lidierth
  Matlab SON library:
  Copyright © The Author & King's College London 2005-2006