HttpGetExtendedInterface Function

Retrieves an extended HTTP interface given the HTTP server instance and the pointer to be down cast.


template <class HttpType1, class HttpType2>  
HRESULT HttpGetExtendedInterface(  
   __in IHttpServer* pHttpServer,  
   __in HttpType1* pInput,  
   __deref_out HttpType2** ppOutput  


[IN] Points to an instance of the IHttpServer interface.

[IN] Points to an instance of the interface to be down cast.

[OUT] Points to the extended HTTP interface.

Return Value

An HRESULT. Possible values include, but are not limited to, those in the following table.

Value Description
S_OK Indicates that the operation was successful.


Template parameters (HttpType1 and HttpType2) can be deduced from the arguments to the function, as shown in the following example.

IHttpRequest * pHttpRequest = pHttpContext->GetRequest();  
IHttpRequest2 * pHttpRequest2;  
HRESULT hr = HttpGetExtendedInterface(g_pHttpServer, pHttpRequest, &pHttpRequest2);  
if( SUCCEEDED(hr) )  
    // Use pHttpRequest2.  

Where pHttpContext is an IHttpContext pointer and g_pHttpServer is an IHttpServer pointer.


Type Description
Client - IIS 7.0 on Windows Vista
- IIS 7.5 on Windows 7
- IIS 8.0 on Windows 8
- IIS 10.0 on Windows 10
Server - IIS 7.0 on Windows Server 2008
- IIS 7.5 on Windows Server 2008 R2
- IIS 8.0 on Windows Server 2012
- IIS 8.5 on Windows Server 2012 R2
- IIS 10.0 on Windows Server 2016
Product - IIS 7.0, IIS 7.5, IIS 8.0, IIS 8.5, IIS 10.0
- IIS Express 7.5, IIS Express 8.0, IIS Express 10.0
Header Httpserv.h

See Also

Web Server Core Functions