如何在Delphi中区分多个键盘？

问题描述

我有两个键盘连接到个人电脑。一个用于在TMemo2中键入TMemo1，另一个用于TMemo2。两者都可以同时输入。问题是我无法区分什么键盘和键盘两个键入的键盘。

有没有办法区分哪些设备某些输入来自？ / p>

解决方案

@Dian，你可以使用功能注册键盘并监视消息，以确定输入来自的设备（键盘）。

查看这些链接了解更多信息

I have two keyboards attached to a PC. One is used to type in TMemo1 and the other in TMemo2. Both are allowed to type at the same time. The problem is I cannot distinguish what keyboard-one has typed and what keyboard-two has typed.

Is there any way to distinguish, which device certain input came from?

解决方案

@Dian, you can use the RegisterRawInputDevices function to register the keyboards and monitor the WM_INPUT message to determine the device (keyboard) where the input came from.

check theses links for more info

• Using Raw Input from C# to handle multiple keyboards
• WM_INPUT Message

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