USB barcode reader in Qt4
问题 I was wondering how could I integrate a USB barcode scanner into a Qt application, as well as a barcode printer. I looked for tutorials but didn't find anything interesting out there. Any ideas? Thanks in advance. 回答1: Most barcode scanners, IIRC basically work like a keyboard from the point of view of your application. You just provide a text field and the barcode reader "types" what it reads. So you don't really need to worry about that, other than validating the input and maybe providing a