barcode-scanner

问题 The LS2208 scanner is plugged in, I tried the scanner modes listed below by reading barcodes I found in the manual. In "USB HID Keyboard" and "OPOS (IBM Hand-held with Full Disable)" modes I can read barcodes into a text document with the scanner. USB HID Keyboard IMB Table Top USB IBM Hand-Held USB OPOS (IBM Hand-held with Full Disable) Simple COM Port Emulation explorer = new PosExplorer(); scannerList = new ArrayList(explorer.GetDevices("Scanner")); All I'm seeing in the list is two

问题 The LS2208 scanner is plugged in, I tried the scanner modes listed below by reading barcodes I found in the manual. In "USB HID Keyboard" and "OPOS (IBM Hand-held with Full Disable)" modes I can read barcodes into a text document with the scanner. USB HID Keyboard IMB Table Top USB IBM Hand-Held USB OPOS (IBM Hand-held with Full Disable) Simple COM Port Emulation explorer = new PosExplorer(); scannerList = new ArrayList(explorer.GetDevices("Scanner")); All I'm seeing in the list is two

问题 The LS2208 scanner is plugged in, I tried the scanner modes listed below by reading barcodes I found in the manual. In "USB HID Keyboard" and "OPOS (IBM Hand-held with Full Disable)" modes I can read barcodes into a text document with the scanner. USB HID Keyboard IMB Table Top USB IBM Hand-Held USB OPOS (IBM Hand-held with Full Disable) Simple COM Port Emulation explorer = new PosExplorer(); scannerList = new ArrayList(explorer.GetDevices("Scanner")); All I'm seeing in the list is two

问题 I'm trying to generate error beep sound using DirectIO event of Pos Scanner but I have no idea about the correct parameters.The event name is DirectIO and it took three parameters his syntax is : directIO(DIO_SCANNER_DIO_ERROR_BEEP, data, object); we don't know the parameter accepts by the above event. Could you please provide us more details about the above event with example in C#/VB.Net. Scanner Details: DataLogic Magellan 9800i Thanks, 回答1: This is a little old material, but the supported

问题 I'm developing an application that will be installed in mobile devices with integrated barcode scanner. In my page there are different types of widget, included a not visible Entry that I want to use temporary to store the scanned barcode value. The problem is that the user can tap and interact with all the widgets in the page and, in an unknown moment, he can scan a barcode. I want to force the focus in this invisible Entry or intercept the text typed (because a barcode scan is like a

问题 I have tried to read IMB barcode from an image with the below code snippet, but it always return null. I have also tried with the IMB barcode images in the blackbox testing below, but doesn't work. https://github.com/micjahn/ZXing.Net/tree/master/Source/test/data/blackbox/imb-1 private static void Decode() { Bitmap bitmap = new Bitmap(@"\07.png"); try { MemoryStream memoryStream = new MemoryStream(); bitmap.Save(memoryStream, ImageFormat.Bmp); byte[] byteArray = memoryStream.GetBuffer();

问题 I wonder how Bar Code and QR Code (even character) are recognized without capturing it.I have seen in many app, when we keep our device above any of these (QR/Bar Code), the app automatically recognize it and starts processing. Is there any scanning mechanism used for this? How this can be achieved? What are mechanism involving in this? Thanks in advance. 回答1: 1) The phone camera will be launched by the library it will autofocus and scans until it finds the decoded info from the image

问题 I am implementing barcode scanner in my application. I would like to limit my detection area. followed the below logic but i doesn't work properly in some of the devices. //Trying to crop the center portion of the frame: public class BoxDetector extends Detector { private Detector mDelegate; private int mBoxWidth, mBoxHeight; public BoxDetector(Detector delegate, int boxWidth, int boxHeight) { mDelegate = delegate; mBoxWidth = boxWidth; mBoxHeight = boxHeight; } public SparseArray detect

问题 I am implementing barcode scanner in my application. I would like to limit my detection area. followed the below logic but i doesn't work properly in some of the devices. //Trying to crop the center portion of the frame: public class BoxDetector extends Detector { private Detector mDelegate; private int mBoxWidth, mBoxHeight; public BoxDetector(Detector delegate, int boxWidth, int boxHeight) { mDelegate = delegate; mBoxWidth = boxWidth; mBoxHeight = boxHeight; } public SparseArray detect

问题 I am trying to run demo from https://github.com/EddyVerbruggen/nativescript-barcodescanner/tree/master/demo both locally and online at https://play.nativescript.org/?template=play-tsc&id=CB7XFu&v=2 but no luck. On the playground I have added the plugin. I noticed there is a similar question here How to use BarcodeScanner plugin from NativeScript but seems it's 3 years before and the plugin changed a lot after that. Can anyone try the playground and tell which line I got wrong? I strictly