how to send return(enter button) character through program

how to send return(enter button) character through program in windows c/c++? I want to send an external program "user name" with enter button through pipe but "\n"开发者_运维问答 and "\r" and EOF are not working..

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If this is conole application, write "\r\n" to its STDIN.

Otherwise, use SendInput

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You mean something like this: CodeProject: C++ SendKeys ?

Bobby

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It's not clear what do you need, maybe this: "\r\n"?