How to detect all network cards, and show the MAC in a dropdown box

使用Delphi编写的一个联网计算机扫描软件，可以用于检测计算机的网络信息-Written in Delphi using a networked computer scanning software, can be used to detect the computer' s network information

DELPHI 事件监测网络状态。如何检测网络连接-DELPHI event monitoring network status. How to detect network connection