AllocMem callback function

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Applies to: desktop apps only

The AllocMem callback function is used to allocate memory from the process heap to a buffer. Any memory allocated by using this callback function will automatically be freed by the Forefront TMG Web proxy after the session ends (as indicated by the SF_NOTIFY_END_OF_NET_SESSION notification). If the memory cannot be allocated, this callback function returns NULL. For more information about the types of event notifications that are sent to Web filters, see Event Notifications.

The AllocMem callback function is declared as:

Syntax

VOID* WINAPI AllocMem(
  _In_  struct _HTTP_FILTER_CONTEXT *pfc,
  _In_  DWORD cbSize,
  _In_  DWORD dwReserved
);

Parameters

  • pfc [in]
    Pointer to the HTTP_FILTER_CONTEXT data structure that is associated with the current, active HTTP session. Pass the filter context in this parameter.

  • cbSize [in]
    Indicates the size of the buffer to be allocated, in bytes.

  • dwReserved [in]
    Reserved for use by the server.

Return value

This callback function does not return a value.

Requirements

Minimum supported client

 None supported

Minimum supported server

 Windows Server 2008 R2, Windows Server 2008 with SP2 (64-bit only)

Version

 Forefront Threat Management Gateway (TMG) 2010

Header

 Wpxhttpfilt.h

See also

Callback Functions

 

 

Build date: 7/12/2010