GetServerVariable

The GetServerVariable callback function specifies a server variable that the ISAPI filter needs to retrieve from IIS.

BOOL WINAPI * GetServerVariable(

  PHTTP_FILTER_CONTEXT pfc,

  LPSTR lpszVariableName,

  LPVOID lpvBuffer,

  LPDWORD lpdwSize

);

Parameters

pfc

Points to the HTTP_FILTER_CONTEXT data structure that is associated with the current, active HTTP transaction.

lpszVariableName

Points to a string that contains the variable to retrieve.

lpvBuffer

Points to the buffer to receive the requested information.

lpdwSize

Points to a DWORD that indicates the size of the buffer pointed to by lpvBuffer. On successful completion, the DWORD contains the size of bytes transferred into the buffer, including the null-terminating byte.