scanning

问题 How can I use IKScannerDeviceView to scan a document inside of my app? I tried adding an IKScannerDeviceView into my view through IB and setting its delegate to my app delegate (which implements the IKScannerDeviceViewDelegate), but when I run the app I get a view with the buttons Show Details and Scan , and only Show Details is enabled and when I click it nothing happens. I have a scanner plugged in and I can scan through Image Capture, but not through my app. Does anybody have a good

问题 I am building a browser based application for document scanning. I have looked at offerings from multiple providers like dynamosoft, asprise, atalasoft etc. My basic question on browser based document scanning is that does any of these products enable scanning from remote machines, using browser based interface? Or should scanner be always connected to the system from where browser is launched? 回答1: Yes. Browser based document scanning relies on the communication between a local service and

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 new here. So, I am making a transaction page for our cashless RFID scanner system. The system works by scanning the RFID card. Once scanned, the card number would appear and get searched in the database. The search feature already works but the problem now is, what are the codes needed to make it proceed once the card number is searched. Otherwise, the transaction will not proceed if the card number is not found in the system? Screenshot of search page Screenshot of code <?php if(isset($

问题 Since Vista, Windows is shipped with WIA 2.0 (wiaaut.dll). According to the following KB article and many of my findings on various forums, duplex scanning is no longer possible using WIA 2.0. Yet, the article mentions the use of native WIA 2.0, what would make duplex scanning possible. (https://support.microsoft.com/en-us/kb/2709992) According to the WIA 2.0 documentation (https://msdn.microsoft.com/en-us/library/windows/desktop/ms630196(v=vs.85).aspx), duplex scanning is possible but using

问题 I need to get a list of available bluetooth devices in the area using google android 2.1. Thing is, i don't just need a list of those devices, i need some unique id for each device found and i need an indicator, how "good" the signal is received (like the "level" in android.wifi.ScanResult)... How do i do that? 回答1: Check out code below : Starting search mBluetoothAdapter.startDiscovery(); mReceiver = new BroadcastReceiver() { public void onReceive(Context context, Intent intent) { String

问题 I need to get a list of available bluetooth devices in the area using google android 2.1. Thing is, i don't just need a list of those devices, i need some unique id for each device found and i need an indicator, how "good" the signal is received (like the "level" in android.wifi.ScanResult)... How do i do that? 回答1: Check out code below : Starting search mBluetoothAdapter.startDiscovery(); mReceiver = new BroadcastReceiver() { public void onReceive(Context context, Intent intent) { String

问题 I have been asked to develop a C# Winforms application that reads barcodes and processes data based on products with the relevant barcode. The barcode scanner we're using is a Symbol LS2208 usb scanner and when it came there was no instructions or cd in the box. We plugged it in, it beeped at us and were were able to scan barcode values into notepad as a test. In my application, how do I ensure that the scanner populates data into the relevant textbox (I've been setting focus after every

问题 I have a Brother mutlifunction networked printer/scanner/fax (model MFC-9140CDN). I am trying to use the following code with WIA, to retrieve items scanned in with the document feeder: const int FEEDER = 1; var manager=new DeviceManager(); var deviceInfo=manager.DeviceInfos.Cast<DeviceInfo>().First(); var device=deviceInfo.Connect(); device.Properties["Pages"].set_Value(1); device.Properties["Document Handling Select"].set_Value(1); var morePages=true; var counter=0; while (morePages) {

问题 I want to scan a VIN barcode, which in Code 39 format, using the camera of iphone/ipad. I tried zxing and zbar, but they don't work well. Most of time they can not recognize the barcode. Can anyone show me a better way to do that? or is there anything I can do to increase the result, because I only need scanning Code 39 (for VIN car). 回答1: use Zbar to accomplish this. In order to get enough resolution to scan, you will want to scan the barcode in landscape mode. Here are my settings (tested &