IIMAPTransport::GetHighestMsgSeqNum method

[IIMAPTransport::GetHighestMsgSeqNum is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions.]

Returns the highest message sequence number in the MsgSeqNumToUID table.

Syntax

HRESULT GetHighestMsgSeqNum(
  [out] DWORD *pdwHighestMSN
);

Parameters

pdwHighestMSN [out]

Type: DWORD*

Receives a pointer to a DWORD that contains the highest message sequence number in the table.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

The MsgSeqNumToUID table maps message sequence numbers to unique identifiers (UIDs). If the client uses message sequence numbers exclusively to identify messages to the server, then this method is not required.

Requirements

Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Product	Outlook Express 6.0
Header	Imnxport.h
IDL	Imnxport.idl
DLL	Inetcomm.dll (version 6.0 or later)