Signature:

  SUBROUTINE h5oget_comment_f(obj_id, comment,        &
        hdferr, bufsize)
    IMPLICIT NONE
    INTEGER(HID_T)   , INTENT(IN)            :: obj_id
    CHARACTER(LEN=*) , INTENT(OUT)           :: comment
    INTEGER          , INTENT(OUT)           :: hdferr
    INTEGER(HSSIZE_T), INTENT(OUT), OPTIONAL :: bufsize 

Inputs:

  obj_id - Identifier for the target object.

Outputs:

  comment - The comment.
  hdferr  - Returns 0 if successful and -1 if fails.

Optional parameters:

  bufsize - Size of the comment buffer.