This function returns the linkfield to the given level.
Result = EOS_PT_FWDLINKINFO(pointID, level, linkfield)
Returns SUCCEED (0) if successful and FAIL (-1) otherwise.
Point id (long) returned by EOS_PT_CREATE or EOS_PT_ATTACH.
Point level (0-based long).
A named variable that will contain the link field (string).
In this example, we return the linkfield connecting the Desc-Loc level to the following Observations level. (These levels are defined in the EOS_PT_DEFLEVEL function.):
status = EOS_PT_FWDLINKINFO(pointID2, 1, linkfield)