Note

Access to this page requires authorization. You can try signing in or .

Access to this page requires authorization. You can try .

WS_DECODER_START_CALLBACK callback function (webservices.h)

Starts decoding a message.

Syntax

WS_DECODER_START_CALLBACK WsDecoderStartCallback;

HRESULT WsDecoderStartCallback(
 [in] void *encoderContext,
 [in, optional] const WS_ASYNC_CONTEXT *asyncContext,
 [in, optional] WS_ERROR *error
)
{...}

Parameters

[in] encoderContext

The decoder instance returned by the WS_CREATE_DECODER_CALLBACK.

[in, optional] asyncContext

Information on how to invoke the function asynchronously, or NULL if invoking synchronously.

[in, optional] error

Specifies where additional error information should be stored if the function fails.

Return value

Return code Description
E_OUTOFMEMORY
 Ran out of memory.
E_INVALIDARG
 One or more arguments are invalid.
Other Errors
This function may return other errors not listed above.

Remarks

The decoder can use the callback passed to WS_CREATE_DECODER_CALLBACK to read the encoded data of the message.

Requirements

Requirement Value
Minimum supported client Windows 7 [desktop apps only]
Minimum supported server Windows Server 2008 R2 [desktop apps only]
Target Platform Windows
Header webservices.h

Feedback

Was this page helpful?

Additional resources

  • Last updated on