WS_DECODER_DECODE_CALLBACK callback function (webservices.h)

Decodes a message.

Syntax

WS_DECODER_DECODE_CALLBACK WsDecoderDecodeCallback;

HRESULT WsDecoderDecodeCallback(
 [in] void *encoderContext,
 void *buffer,
 [in] ULONG maxLength,
 [out] ULONG *length,
 [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.

buffer

The buffer to read into.

[in] maxLength

The maximum number of bytes to read.

[out] length

The number of bytes read should be returned here.

The number of bytes should be set to 0 when there are no more bytes left. This indicates the end of the decoded message data, and will cause WS_DECODER_END_CALLBACK to be invoked.

[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

Requirements