有谁知道如何监控智能卡的存在并读取卡的UID值?
是的我在网上尝试过很多例子
A Smart Card Framework for .NET
但不知道该怎么做.我可以检测卡的存在并且可以单独获取UID,但不知道如何在我的应用程序中组合它们:(.
帮我
解决方法
我明白了.想与任何有兴趣的人分享.
我使用winscard.dll函数来访问卡数据并与PC通信.
请注意,我使用Mifare 1K卡作为NFC标签和读卡器ACR 122u.
private string getcardUID()//only for mifare 1k cards { string cardUID = ""; byte[] receivedUID = new byte[256]; Card.SCARD_IO_REQUEST request = new Card.SCARD_IO_REQUEST(); request.dwProtocol = Card.SCARD_PROTOCOL_T1; request.cbPciLength = System.Runtime.InteropServices.Marshal.SizeOf(typeof(Card.SCARD_IO_REQUEST)); byte[] sendBytes = new byte[] { 0xFF,0xCA,0x00,0x00 }; //get UID command for Mifare cards int outBytes = receivedUID.Length; int status = Card.SCardTransmit(hCard,ref request,ref sendBytes[0],sendBytes.Length,ref receivedUID[0],ref outBytes); if (status != Card.SCARD_S_SUCCESS) { cardUID = "Error"; } else { cardUID = BitConverter.ToString(receivedUID.Take(4).ToArray()).Replace("-",string.Empty).ToLower(); } return cardUID; }
对于任何有兴趣的人,我已经写了一步一步的指导来实现这一点.
Simple NFC reading system for windows
请享用!!!