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IWSDiscoveryPublisher::Publish (Compact 2013)

  • Article

3/26/2014

This method announces the presence of a network host by sending a Hello message.

Syntax

HRESULT MatchResolve(
  LPCWSTR pszId,
  ULONGLONG ullMetadataVersion,
  ULONGLONG ullInstanceId,
  ULONGLONG ullMessageNumber,
  LPCWSTR pszSessionId,
  const WSD_NAME_LIST* pTypesList,
  const WSD_URI_LIST* pScopesList,
  const WSD_URI_LIST* pXAddrsList
);

Parameters

  • pszId
    [in] Device identifier to use in the device endpoint address. This identifier is of the form urn:uuid:{guid}.

  • ullMetadataVersion
    [in] Current metadata version.

    Note

    For compatibility with the WS-Discovery specification, this value must be less than or equal to UINT_MAX (4294967295).

  • ullInstanceId
    [in] Identifier for the current instance of the device being published.

    Note

    For compatibility with the WS-Discovery specification, this value must be less than or equal to UINT_MAX (4294967295).

  • ullMessageNumber
    [in] Counter within the scope of the instance identifier for the current message.

    Note

    For compatibility with the WS-Discovery specification, this value must be less than or equal to UINT_MAX (4294967295).

  • pszSessionId
    [in, optional] Unique identifier within the scope of the instance identifier for the current session.
  • pTypesList
    [in, optional] List of types supported by the publishing host. May be NULL.
  • pScopesList
    [in, optional] List of scopes supported by the publishing host. May be NULL.
  • pXAddrsList
    [in, optional] List of transport addresses supported by the publishing host. pXAddrsList and pXAddrsList->Element may not be NULL.

Return Value

The following table shows the possible error code return values.

Error code

Description

S_OK

This method completed successfully.

E_INVALIDARG

One or more of the following conditions is true:

  • pszId is NULL.
  • The length in characters of pszId exceeds WSD_MAX_TEXT_LENGTH (8192).
  • The length in characters of pszSessionId exceeds WSD_MAX_TEXT_LENGTH (8192).

HRESULT_FROM_WIN32 (ERROR_NO_CALLBACK_ACTIVE)

There is no registered notification sink. To attach a sink, call IWSDiscoveryPublisher::RegisterNotificationSink.

E_ABORT

The publisher has not been started. Attaching a notification sink starts the publisher. To attach a sink, call RegisterNotificationSink.

E_OUTOFMEMORY

Insufficient memory to complete the operation.

Remarks

If successful, Publish will send a WS-Discovery Hello message to the local subnet with the provided information.ullInstanceId, pszSessionId, and ullMessageNumber are optional parameters that can be used for application sequencing.

Requirements

Header

wsdapi.h

Library

wsdapi.lib

See Also

Reference

IWSDiscoveryPublisher
Web Services on Devices Interfaces