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Specifies a callback interface to call when the asynchronous operation has completed.
Syntax
HRESULT SetCallback(
[in] IWSDAsyncCallback *pCallback,
[in] IUnknown *pAsyncState
);
Parameters
[in] pCallback
Pointer to a IWSDAsyncCallback object that contains the callback implemented by the user.
[in] pAsyncState
User-defined state information to pass to the callback.
Return value
This method can return one of these values.
Possible return values include, but are not limited to, the following.
| Return code | Description |
|---|---|
|
Method completed successfully. |
|
pCallback is NULL. |
Remarks
The IWSDAsyncCallback::AsyncOperationComplete method is passed the result object associated with the completing message and the state.
pCallback is released when the IWSDAsyncResult object is destroyed.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | wsdclient.h (include Wsdapi.h) |
| DLL | Wsdapi.dll |