How to use ZK4500 Fingerprint Scanner SDK in C# Project [closed]

Answer 1

You need to add reference to ZKFPEngXControl that will appear under COM Type Libraries. After that you can use the ZKFPEngX Class to do whatever you require.

using ZKFPEngXControl;

and then

ZKFPEngX fp = new ZKFPEngX();
fp.SensorIndex = 0;
fp.InitEngine(); // Do validation as well as it returns an integer (0 for success, else error code 1-3)
//subscribe to event for getting when user places his/her finger
fp.OnImageReceived += new IZKFPEngXEvents_OnImageReceivedEventHandler(fp_OnImageReceived);

You can write your own method fp_OnImageReceived to handle the event. for example you can write this in that method;

object imgdata = new object();
bool b = fp.GetFingerImage(ref imgdata);

Where imgdata is an array of bytes.You can also use other methods in ZKFPEngX, to achieve your goals. Remember to close the engine when form closes.

fp.EndEngine();