Recv Method of the IFWXSocket Interface

The Receive method receives a buffer asynchronously. It performs an overlapped receive (or receive from operation, depending on the socket type).

HRESULT Recv(
  [in]  IFWXIOBuffer* pIOBuffer,
  [in]  IFWXIOCompletion* pIFWXIOCompletion,
  [in]  UserContextType UserData
);

pIOBuffer
Pointer to the buffer that receives the data.

This parameter may be set to NULL, so that the Microsoft Firewall service will create the buffer. In this case, the same buffer object can be passed between data filters, and buffer copy will be avoided. The IFWXIOCompletion::CompleteAsyncIO completion method receives a buffer object as one of its arguments.
pIFWXIOCompletion
Pointer to the IFWXIOCompletion interface that receives the completion notification. This parameter is required. it cannot be NULL.
UserData
An opaque value to pass to the IFWXIOCompletion::CompleteAsyncIO notification method. This parameter provides a context to the notification.

This method returns S_OK if the call is successful; otherwise, it returns an error code.

Server	Requires Windows Server 2008 R2 or Windows Server 2008 x64 Edition with SP2.
Version	Requires Forefront Threat Management Gateway (TMG) 2010.
Header	Declared in Wspfwext.idl.
DLL	Requires Wspsrv.exe.

Additional resources