问题描述
我想创建一些后台进程来监听所有的击键事件和行为（例如，如果CMD-A在Finder.app中被按下，或者更复杂的事情，如序列创建快捷键如emacs ..）
I'd like to create some kind of background process that listens to all keystrokes event and acts consequently (for example does some action if CMD-A is pressed while in Finder.app, or more complex things, like sequences to create shortcuts like in emacs..)
但是，如何在SnowLeopard系统范围内收听按键？
我想到了Applescript ..但没有发现任何东西..
（我也很好，而且打算使用rb-appscript）
But how can I listen to keypresses systemwide on SnowLeopard?I thought of Applescript.. but found nothing..
(I'm good at ruby too, and intended to use rb-appscript actually)
谢谢！
推荐答案
如果您真的想捕获系统范围内的所有按键，则需要。
If you really want to capture all the keystrokes system-wide, you need CGEventTap. I don't think it's available directly to AppleScript, maybe on 10.6 you can use AppleScriptObjC. Surely it should be available to Ruby via Bridge Support.
然而，系统范围的键盘监听器将被非常频繁地调用。我建议在C或Obj-C中编写代码，这将更有效。
However, a system-wide keyboard listener would be called very often. I would suggest to code in C or Obj-C instead, which would be more efficient.
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