IWSDiscoveryPublisher::UnPublish (Windows Embedded CE 6.0)
1/6/2010
This method announces the departure of a network host by sending a Bye message.
Syntax
HRESULT UnPublish(
LPCWSTR pszDeviceId,
ULONGLONG ullInstanceId,
ULONGLONG ullMessageNumber,
LPCWSTR pszSessionId,
const WSDXML_ELEMENT* pAny
);
Parameters
- pszDeviceId
[in] Device Identifier to use in the device endpoint address.
ullInstanceId
[in] Identifier for the current instance of the device being unpublished.Note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.
- pAny
[in, optional] DOM to be inserted in the ANY section of the message body.
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:
|
E_ABORT |
The publisher has not been started. Attaching a notification sink starts the publisher. To attach a sink, call IWSDiscoveryPublisher::RegisterNotificationSink. |
E_OUTOFMEMORY |
Insufficient memory to complete the operation. |
Remarks
If successful, UnPublish will send a WS-Discovery Bye 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 |
| Windows Embedded CE | Windows Embedded CE 6.0 R2 |