| Platform SDK: MAPI |
The following functions manipulate entry identifiers and message identifiers:
HrComposeEID
HrComposeMsgID
HrDecomposeEID
HrDecomposeMsgID
HrEntryIDFromSz
HrSzFromEntryID
WrapStoreEntryID
Note Except for WrapStoreEntryID, these functions may not be supported in future versions of MAPI.