This function returns information about specified fields in a point regardless of level.
Result = EOS_PT_SIZEOF(pointID, fieldlist, fldlevel)
Returns size in bytes of specified fields and FAIL (-1) otherwise.
Point id (long) returned by EOS_PT_CREATE or EOS_PT_ATTACH.
Field names (string).
A named variable that will contain the level number (long) of each field.
In this example, we return the size in bytes of the Label and Rainfall fields in the 2nd point defined in the EOS_PT_DEFLEVEL function:
size = EOS_PT_SIZEOF(pointID2, "Label,Rainfall", fldlevel)