USB接口条码扫描器 [英] USB interface barcode scanners

问题描述

不完全是编程问题，但是很接近.反正我会碰运气的.

Not exactly a programming question, but close. I'll try my luck anyway.

键盘楔 条形码扫描器插入 阅读器之间的翻译装置 和键盘. 通过 楔形看起来就像被键入 电脑，而键盘 本身仍然可以正常运行. 因为计算机使用键盘 楔子不能分辨出差异 在一个输入的数据之间 扫描设备或数据 通过键盘输入，楔形输入 可用于轻松添加条形码 现有的阅读能力 无需修改软件的计算机 应用程序.

The keyboard wedge barcode scanner inserts the translation device between the reader and the keyboard. Data sent through a wedge appears as if it was typed into the computer, while the keyboard itself remains fully functional. Because a computer using a keyboard wedge can't tell the difference between data that is entered by a scanning device, or data that is entered by keyboard typing, a wedge can be used to easily add barcode reading capability to an existing computer without modifying software applications.

我想知道是否所有USB接口条形码扫描仪都会自动将条形码读取器的数字信号转换为楔形之类的应用程序的键盘笔触，或者USB与楔形不同?

I'd like to know if all USB interface barcode scanners automatically translate digital signals from a barcode reader into keyboard strokes for a applications just like wedge or is USB different from wedge?

非常感谢

推荐答案

有各种各样的API可以访问条形码扫描仪-绝不是通过使它们成为键盘"来使它们全部起作用！-)例如，在此处中，您可以找到合理的可能性汇总(传统的rs232方法，楔形"方法).和USB接口)，尽管只由一家公司生产.根据您愿意和能够进行的编程，您的最佳选择可能是这些方法中的任何一种，或者还有其他方法.

There are all sorts of API to access barcode scanners -- by no means do they all work by making believe they're "the keyboard"!-) For example, here you can find a reasonable summary of possibilities (the classic rs232 approach, the "wedge" one, and USB-interface ones) albeit for a single firm producing them. Depending on what programming you're willing and able to do, your best choice might be any of these approaches, or others yet.

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