HttpSendRequestEx Function

---

Sends the specified request to the HTTP server and allows chunked transfers.

Syntax

BOOL HttpSendRequestEx(
    IN HINTERNET hRequest,
    IN LPINTERNET_BUFFERS lpBuffersIn,
    OUT LPINTERNET_BUFFERS lpBuffersOut,
    IN DWORD dwFlags,
    IN DWORD dwContext
);

The actual syntax of this function varies between its ANSI and Unicode implementations. For more information, see Win32 Internet Functions Syntax.

Parameters

hRequest

HINTERNET handle returned by HttpOpenRequest.

lpBuffersIn

Optional. Address of an INTERNET_BUFFERS structure.

lpBuffersOut

Optional. Address of an INTERNET_BUFFERS structure.

dwFlags

One of the following values:

HSR_ASYNC

Identical to WININET_API_FLAG_ASYNC.

HSR_SYNC

Identical to WININET_API_FLAG_SYNC.

HSR_USE_CONTEXT

Identical to WININET_API_FLAG_USE_CONTEXT.

HSR_INITIATE

Iterative operation (completed by HttpEndRequest).

HSR_DOWNLOAD

Download resource to file.

HSR_CHUNKED

Send chunked data.

dwContext

Unsigned long integer variable that contains the application-defined context value, if a status callback function has been registered.

Return Value

Returns TRUE if successful, or FALSE otherwise. To get extended error information, call GetLastError.

Function Information

Windows NT	Use version 4.0. Implemented as ANSI and Unicode functions.
Windows	Use Windows 95 and later. Implemented as ANSI and Unicode functions.
Header	Wininet.h
Import library	Wininet.lib
Minimum availability	Internet Explorer 4.0 (ANSI only), 5 (ANSI and Unicode)

Windows CE

Windows CE	Use version 2.12 and later. Implemented as ANSI and Unicode functions.
Minimum availability	Internet Explorer 4.0

See Also

Microsoft Win32 Internet Functions Overview, HTTP Sessions, Microsoft Win32 Internet Functions Reference, HTTP Functions