_IEC_RESULT Input pParam POINTER TO tSysDirDelete
_IEC_HANDLE Input pParam POINTER TO tSysDirOpen
_IEC_RESULT Input pParam POINTER TO tSysDirRead
_IEC_RESULT Input pParam POINTER TO tSysDirRename
Result POINTER TO UDINT
Offset XWORD pResult POINTER TO UDINT
