键盘事件
我需要监听来自特定键盘设备的键盘事件知道在 (C#) WPF 应用程序中按下了哪个键。理想情况下，这不应该依赖于窗口，并且只要应用程序具有焦点就可以工作。
不幸的是我想不出/找到任何方法来做到这一点。
有什么想法吗？
博士
编辑：我一直在研究OpenTK.Input< /a> 库，它有一个很好的按键界面...有谁知道如何在不创建 GameWindow 的情况下获取 KeyboardDevice
信息： 顺便说一句，这是对于模拟键盘的条形码扫描仪......谁的好主意是，嗯？
I need to listen for keyboard events from a specific keyboard device & know which key is pressed in a (C#) WPF application. Ideally, this shouldn't be window dependant and work so long as the application has focus.
unfortunately I can't think of / find any way to do this.
any ideas?
D.R
Edit: I've been looking into the OpenTK.Input library, which has a nice interface for keys... Does anybody know how to get a KeyboardDevice without creating a GameWindow
Info: Just by the way, this is for a barcode scanner which emulates a keyboard... who's bright idea was that, eh?
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我实际上正在做一个项目，正是这样做的。查看 Kaptivate。它安装一个全局键盘钩子，并将原始输入 api 连接在一起（使用魔法），然后调用回调函数，以便您可以决定（1）这就是我想要的设备吗？（2）我应该允许其他应用程序可以查看它，或者只是为自己保留击键。目前只有 C++，但最终目标之一是拥有 C# 包装器。
对于键盘，每个生成的事件都会告诉您 vkey、扫描代码和源设备。
I'm actually working on a project that does exactly that. Check out Kaptivate. It installs a global keyboard hook, and ties together (using magic) the raw input api, and then invokes a callback function so that YOU can decide (1) is this the device I'm after?, and (2) should I allow other apps to see it, or just keep the keystroke for myself. Right now it's only C++ but one of the goals is eventually to have C# wrappers.
For keyboards, each generated event tells you the vkey, scan code, and source device.
看看下面2篇文章。
在 WPF / C# 中使用全局键盘挂钩 (WH_KEYBOARD_LL)< /a>
https://gist.github.com/471698
两者都应该正是您想要的。 ..
Have a look at the below 2 articles.
Using global keyboard hook (WH_KEYBOARD_LL) in WPF / C#
https://gist.github.com/471698
both should be exactly what you want...
设法在msdn上找到这个教程 。以及 POS.Net SDK
我还没有真正有时间来分解它是如何工作的，还没有给出适当的概述，但似乎我应该能够为任何“键盘楔子”编写自定义服务对象抽象HID 设备。
Managed to find this tutorial on msdn. along with a Sample Scanner object which comes with the POS.Net SDK
I haven't really had the time to pick apart how it works yet to give a proper overview, but it seems I should be able to write a custom service object abstraction for any "keyboard wedge" HID device.