如何捕获键盘仿真? [英] How to Capture a Keyboard Emulation?

问题描述

我有一个使用键盘仿真的读卡器.如果我打开记事本并刷卡，它会将卡上的数据打印到文件中.我在C#应用程序中编码时遇到了麻烦，该问题在于如何重点关注此事件以及如何将数据响应捕获到变量中.有帮助吗?我已经做了很多搜索，但并没有给出任何直接的答案.

I have a card reader that uses Keyboard Emulation. If I open notepad and swipe a card it prints to the file the data on the card. I am having trouble coding in my C# application with how to place focus on this event and capture the data response into a variable. Any Help? Ive done lots of searching and have not really given found any direct answers.

推荐答案

尝试使用Windows挂钩；从这里开始: http://msdn.microsoft.com/en-us /library/ms632589%28v=vs.85%29.aspx [

Try using Windows Hooks; start here: http://msdn.microsoft.com/en-us/library/ms632589%28v=vs.85%29.aspx[^].

To make a Window global, using P/Invoked SetWindowsHookEx in C# won''t be enough. You only can do it in native Windows DLL. You can use any compiler capable of producing native (unmanaged) Windows code like C++, Delp etc., but a mixed/mode (managed+unmanaged) project using C++/CLI has the benefit of using the same executable module to code setting up the hook and serving as a .NET assembly you can reference in your C# code. This way, you can catch any message in the system.

—SA

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