请问我如何使用传输文件功能? [英] Please how do I use transmit file function?

问题描述

MSDN表示，必须在运行时通过使用指定的SIO_GET_EXTENSION_FUNCTION_POINTER操作码调用WSAIoctl函数来获取指向TransmitFile函数的指针，并且传递给WSAIoctl函数的输入缓冲区必须包含WSAID_TRANSMIT_FILE，这是一个全局唯一标识符(GUID)值标识rtransmit文件扩展功能.

我的挑战确实是如何使用WSAIoctl函数.我想知道我必须以哪种形式或方式传递WSAID_TRANSMIT_FILE GUID.我必须使用什么输入缓冲区字符数组，结构等.我要使用哪种输出.简而言之，如何在运行时使用WSAIoctl来获取指向TransmitFile函数的指针.

MSDN says one must obtain a pointer to TransmitFile function at run time by making a call to WSAIoctl function with the SIO_GET_EXTENSION_FUNCTION_POINTER opcode specified and that the input buffer passed to the WSAIoctl function must contain WSAID_TRANSMIT_FILE, a global unique identifier(GUID) whose value identifies the rtransmit file extension function.

My challenge is really how to use the WSAIoctl function. I wish to know in what form or way I must pass in the WSAID_TRANSMIT_FILE GUID. What can of input buffer must I use-character array,struct etc. What kind of output do I use. In short, how do I use WSAIoctl to get a pointer to TransmitFile function at run time.

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Best regards
Espen Harlinn

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