如何阅读从USB HID设备的输入？ [英] How do I read input from a USB HID device?

问题描述

我在做一个应用程序在一个salespoint后台运行从USB扫描仪读取输入。
我怎样才能从C＃扫描仪的输入？
而且我可以扫描仪和USB键盘区分？ （Scanner是一款HID设备）

I'm making an application to run in the background on a salespoint to read input from a usb scanner. How can I get the input of the scanner from C#? And can I differentiate between the scanner and a usb keyboard? (Scanner is a HID device)

推荐答案

我这样做是成功地运用在$ C $的CProject一个原始输入实施前：

I did this successfully before using a "Raw Input" implementation on CodeProject:

• 原始输入

• Raw Input

它可以让你同时接收输入（什么是钥匙是$ P $，如果它模仿键盘pssed），以及区分它来自哪个设备。

It allows you to receive both the input (what "keys" are pressed if it mimics a "keyboard") as well distinguish which device it came from.

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