如何从Zebra mc330m扫描仪捕获JavaScript窗口中的document [keypress]上的输入? [英] How to catch input on document[keypress] on window in javascript from Zebra mc330m scanner?

问题描述

我将扫描仪配置为在输入末尾发送Enter键，js会正确读取它，但其他字符丢失.

I configured the scanner to send Enter at the end of the input and js reads it correctly but the other characters are lost.

我尝试使用 event.keyCode，event.which，event.charCode 对输入字符进行解码，但没有任何效果.如果我将其附加到普通输入，则可以正常工作.它也可以在浏览器地址栏中(chrome)使用.但是，当我将其附加到文档['onkeypress']时，它不会读取字符.

I have tried to decode the input characters with event.keyCode, event.which, event.charCode and nothing works. If I attach it to normal input it works. It also works in the browser address bar (chrome). But when I attach it to the document['onkeypress'] it doesn't read the characters.

我从此处尝试了Martin Orth解决方案: https://developer.zebra.com/thread/35513但我无法使其正常工作，甚至不知道它是否是同一台扫描仪.

I tried Martin Orth solution from here: https://developer.zebra.com/thread/35513 but I couldn't make it work I even don't know if it's the same scanner.

从这里我了解到扫描仪正在发送ASCII字符，而javascript没有读取它们的机制? https://developer.zebra.com/thread/34536

From here I understood that the scanner is sending ASCII characters and javascript has no mechanizm to read them? https://developer.zebra.com/thread/34536

如果有人知道解决该问题的方法，将非常感谢您的帮助.如果可能的话，我更喜欢使用js/jquery.

If anyone knows the solution to this problem, help is highly appreciated. I prefer with js/jquery if it is possible at all.

推荐答案

此功能是使用按键功能最近添加到DataWedge 7.3中的，该功能包含在最新的MC33 OS更新(02.13.15-LG Update 16)中-我写道有关如何使用它的博客: https://developer.zebra.com/博客/listening-keypress-events-datawedge .为了清楚起见，我为Zebra工作

This feature, using keypress, was recently added to DataWedge 7.3 which is included in the latest MC33 OS update (02.13.15 - LG Update 16) - I wrote a blog about how to use it: https://developer.zebra.com/blog/listening-keypress-events-datawedge. For clarity, I work for Zebra

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