HTTP_FILTER_CONTEXT

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This structure is used by HTTP_FILTER_PROC to obtain information about the current request. This structure is very similar in function to an ISAPI extension's EXTENSION_CONTROL_BLOCK.

typedef struct _HTTP_FILTER_CONTEXT {
DWORD cbSize; 
DWORD Revision; 
PVOID ServerContext; 
DWORD ulReserved; 
BOOL fIsSecurePort; 
PVOID pFilterContext; 
BOOL (WINAPI *GetServerVariable); 
BOOL (WINAPI *AddResponseHeaders); 
BOOL (WINAPI *WriteClient); 
VOID *(WINAPI *AllocMem); 
BOOL (WINAPI *ServerSupportFunction); 
} HTTP_FILTER_CONTEXT, *PHTTP_FILTER_CONTEXT;

Members

  • cbSize
    The size of this structure, in bytes.
  • Revision
    The revision level of this structure.
  • ServerContext
    Reserved for server use.
  • ulReserved
    Reserved for server use.
  • fIsSecurePort
    This value is always FALSE in Windows CE Web server.
  • pFilterContext
    Points to any context information that the filter wants to associate with this request. Any memory associated with this request can be safely freed during the SF_NOTIFY_END_OF_NET_SESSION notification.
  • GetServerVariable
    Points to a function that retrieves information about the server and this connection. For some notifications, some variables may not be defined. For example, notifications which occur before PREPROC_HEADERS, such as the READ_RAW_DATA notification, may not be defined.
  • AddResponseHeaders
    Points to the AddResponseHeaders function that adds a header to the HTTP response.
  • WriteClient
    Points to the WriteClient function that sends raw data back to the client.
  • AllocMem
    Points to the AllocMem function used to allocate memory. Any memory allocated with this function will automatically be freed when the session ends.
  • ServerSupportFunction
    Points to the ServerSupportFunction function used to extend the ISAPI filter functions. Parameters are specific to the extensions.

Requirements

Runs on Versions Defined in Include Link to
Windows CE OS 3.0 and later Httpfilt.h    

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

AllocMem, GetServerVariable, ServerSupportFunction, WriteClient

 Last updated on Tuesday, July 13, 2004

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