间谍键盘（如何通过 C# win 表单应用程序获取键盘数字）
我想使用 C# 构建一个 win 应用程序... 我希望这个应用程序接受来自键盘的字母...并且我希望通过该程序或另一个程序编写文本来完成...如果我可以选择我想要监视的程序，那就更好了.. 。 换句话说...我希望我的程序能够让键盘上按下的所有内容以及所有内容都在firefox、opera、internet explorer 上写入，这些内容与我的程序同时运行...
I want to build a win app using C#...
I want this app to accept letter from the keyboard... and I want that to be done either the text is written via this program or another... its will be much better if I can choose programs I want to spy on...
in another words... I want my program to get every thing presses on the keyboard and everything is being written on firefox,opera,internet explorer witch are running at same time with my program...
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您需要一个全局键盘挂钩，它允许您的应用程序侦听系统范围内的键盘输入事件。您可以通过 P/调用
SetWindowsHookEx函数 来实现此目的 并为idHook参数指定WH_KEYBOARD_LL标志。整个过程可能会变得稍微复杂。但事实证明你很幸运。 Stephen Toub 已经在他的博客上为您编写了代码： C# 中的低级键盘挂钩。只需将其放入您的项目中，您就可以从事间谍业务了。
You need a global keyboard hook, which will allow your application to listen in on keyboard input events system-wide. You implement this by P/Invoking the
SetWindowsHookExfunction and specifying theWH_KEYBOARD_LLflag for theidHookparameter. The entire process can get slightly complicated.But it turns out that you're in luck. Stephen Toub has already written the code for you here on his blog: Low-Level Keyboard Hook in C#. Just drop this into your project and you're in the spy business.
我相信您正在寻找的是键盘记录器...
如果是这样，您可以找到以下信息：
http://www.axino.net/tutorial/2009/02 /keylogger-in-c-简介
I believe what you are looking for is a keylogger...
if so you can find information on:
http://www.axino.net/tutorial/2009/02/keylogger-in-c-introduction
Code Project 有一篇相当全面的文章：http://www.codeproject.com /KB/system/KeyLogger.aspx
虽然该文章基于 C++ 等，但它涵盖了您需要了解的许多技术细节。
这里有一个示例 C# 项目： http://www.codeproject.com/KB/system /simple_key_log.aspx。
There's a fairly comprehensive article on this over at Code Project: http://www.codeproject.com/KB/system/KeyLogger.aspx
While that article is based around C++ etc it covers a lot of the technical details you need to know.
There is an example C# project here: http://www.codeproject.com/KB/system/simple_key_log.aspx.