对USB设备的管理操作,可以弹出USB设备.delphi-USB device management operation, USB devices can be activated. Delphi

Delphi编程实现对usb操作。The contents of this file are used with permission, subject to } { the Mozilla Public License Version 1.1 (the "License") you may } { not use this file except in compliance with the License. You may