How can i read the scanner data. #146
Description
I have confirmed that VENDOR_ID and PRODUCT_ID are correct.
Found problem in hidDataReceived did not trigger. The reason is that the read function has not read data.
Please look at the problem. Thank you all.
The operating environment is in the window system.
hidapi is version 0.14.0
The device is a scanning gun for HIM
Here's my code
public class BarcodeScannerReader {
private static final int VENDOR_ID = 0x1eab;
private static final int PRODUCT_ID = 0x1a03;
public static void main(String[] args) throws InterruptedException {
HidServices hidServices = HidManager.getHidServices();
hidServices.addHidServicesListener(new HidServicesListener() {
@Override
public void hidDeviceAttached(HidServicesEvent event) {
System.out.println("Device attached: " + event.getHidDevice());
}
@Override
public void hidDeviceDetached(HidServicesEvent event) {
System.out.println("Device detached: " + event.getHidDevice());
}
@Override
public void hidFailure(HidServicesEvent event) {
System.out.println("HID failure: " + event);
}
@Override
public void hidDataReceived(HidServicesEvent event) {
System.out.println("HID hidDataReceived: " + event);
}
});
hidServices.start();
HidDevice hidDevice = hidServices.getHidDevice(VENDOR_ID, PRODUCT_ID, null);
if (hidDevice != null) {
System.out.println("Found device: " + hidDevice);
byte[] data = new byte[10];
while (true) {
int bytesRead = hidDevice.read(data, 1000);
if (bytesRead > 0) {
String barcode = new String(data, 0, bytesRead);
System.out.println("Barcode scanned: " + barcode);
}
}
} else {
System.out.println("Device not found!");
}
hidServices.shutdown();
}
}