__full__ | Secugen Device Registration

Many developers forget the Init() call and jump straight to Capture() . This is the #1 cause of registration errors. Troubleshooting Common Registration Failures Even with correct steps, you may encounter issues. Here is a diagnostic checklist. Error 1: “Device Already Registered” (or “Resource Busy”) Cause: Another process (like Windows Hello, a web app, or a second SDK instance) has a lock on the device.

Install SecuGen Remote Device Server (RDS). This service registers the device on the client machine and tunnels the biometric data via TCP/IP, bypassing USB redirection altogether. secugen device registration

Remember the golden rule: Register at the OS level first (Driver), then at the application level (SDK). Never assume a device is registered just because Windows plays the “USB connect” sound. Many developers forget the Init() call and jump

// Initialize the device manager SGFingerprintManager fpMgr = new SGFingerprintManager(); // Register the device (critical step) int ret = fpMgr.Init(); if (ret == (int)ErrorCodes.SUCCESS) { // Optional: Set device priority if multiple readers fpMgr.SetDevicePriority(0); // 0 = first available device Console.WriteLine("Device registered successfully."); } else { Console.WriteLine($"Registration failed: Error {ret}"); } Here is a diagnostic checklist