difference between a keyboard and a barcode reader
-
-
how to detect the difference between a keyboard and a barcode reader, I managed to list the USB devices, and found the difference in serial number, and I also want to display the brand of each device, and I need your help at this level, thank you
One is used by a mindless drone chewing gum and pretending to work all day, the other is found in a supermarket.
"Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming "Wow! What a Ride!" — Hunter S. Thompson
-
how to detect the difference between a keyboard and a barcode reader, I managed to list the USB devices, and found the difference in serial number, and I also want to display the brand of each device, and I need your help at this level, thank you
Hi membre123, I don't know who voted your question as good question. But, this is clearly not a C# question. I appreciate your inquiring mind and thus does not down-voting you. Please be advised about relationships between questions and forums.
♫ 99 little bugs in the code, 99 bugs in the code We fix a bug, compile it again 101 little bugs in the code ♫
-
how to detect the difference between a keyboard and a barcode reader, I managed to list the USB devices, and found the difference in serial number, and I also want to display the brand of each device, and I need your help at this level, thank you
Barcode readers often use the keyboard interface for entering their data into text fields. Consequently, I'd expect such readers to show up as "keyboards" also. Some other devices pretend to be keyboards just to get some electrical power via the USB port of the computer.... It's not wise to believe that all keyboards listed in device manager are really keyboards. When you can get the Vendor ID and Product ID from the list of USB devices, you could compare those data with your list of your supported barcode readers - not a nice solution, but it would work.