IHttpNegotiate::OnResponseIHttpNegotiate::OnResponse*
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IHttpNegotiate::OnResponse

HRESULT OnResponse(
    [in] DWORD  dwResponseCode,
    [in] LPCWSTR  szResponseHeaders,
    [in] LPCWSTR  szRequestHeaders,
    [out] LPWSTR * pszAdditionalRequestHeaders
);

Allows the client of a bind operation to examine the response headers, optionally terminate the bind operation, and add HTTP headers to a request before resending the request.

dwResponseCode
HTTP response code returned in response to a previous HTTP request. For information about these codes, see the HTTP specification.
szResponseHeaders
Response headers from the HTTP server. For more information, see the HTTP specification.
szRequestHeaders
If dwResponseCode indicates an error, contains HTTP request headers that will be used when the request is sent again.
pszAdditionalRequestHeaders
If dwResponseCode indicates an error, contains optional, additional headers to add before the request is sent again. If the specified header value conflicts with existing values in szRequestHeaders, the new headers take precedence. If pszAdditionalRequestHeaders is set to NULL, no headers are added to the HTTP request.

The URL moniker calls this method when it receives a response to an HTTP request. If dwResponseCode indicates a success, the client can examine the response headers and can optionally abort the bind operation. If dwResponseCode indicates a failure, the client can add HTTP headers to the request before it is sent again.

Note that if multiple clients have registered on the bind context for a given bind operation, more than one of these clients can provide an IHttpNegotiate callback interface. Every client providing this callback receives notifications. Each one is given a chance to add HTTP headers or to abort the HTTP transaction. In such cases, the last client to receive callback notification is the client driving the download operation, and it will dictate the final decision.

See also IHttpNegotiate::BeginningTransaction

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