C#与HidUsb设备通信
baidu搜索c# HidUsb都是大同小异案例，而且拿下来基本不能用。大都是围绕public static extern int CreateFile(省略众多参数..);发现没有，copy下来测试基本都是用不了的。
原因很简单：windows不允许你用程序随便就去访问硬件设备。所以在此把之前做过的基于C#开发读写HidUsb设备的项目整理成一个简单的小案例，分享给大家，开发环境VS2010。
该案例重点在public static extern SafeFileHandle CreateFile(string lpFileName, uint dwDesiredAccess, int dwShareMode, IntPtr lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile); 看着貌似也是用到CreateFile这个函数，其实并不然，注意到没有"SafeFileHandle"，这就是重点! 这样windows是允许程序访问外接hidusb设备的。
当然具体如何运用这个函数现在已经不是您应该关心的了，因为我已经为您把它封装成一个类，您只要调用相应的方法就OK.
例：
获取HidUsb设备信息
List slist = new List();
UsbHidDevice usbhid = new UsbHidDevice();
usbhid.GetDeviceList(ref slist); //HidUsb设备信息包含在List数据集中
当获取到HidUsb设备信息为：\\?\hid#vid_0e2c&pid_0112#6&1b44c403&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}
那么: vid为0e2c, pid为:0112
//创建一个HidUsb设备访问实例
UsbHidDevice Device = new UsbHidDevice(vid, pid);
//实现数据接收事件
Device.DataReceived += new UsbHidDevice.DataReceivedDelegate(Device_DataReceived);
//当HidUsb设备返回信息时触发此事件
void Device_DataReceived(byte[] data){ }
//向Hid设备发送数据"0xa0 00 0x12 0x9 0x22"
string txt = "0xa0 00 0x12 0x9 0x22";
//把数据转换为字节数组
byte[] data = ConvertHelper.StringToByte(txt2);
byte bt = 0;
CommandMessage cmdMsg = new CommandMessage(bt, data);
Boolean sbool = Device.SendMessage(cmdMsg); //发送数据
Device.Dispose(); //释放所有资源
文件下载
资源详情
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