C++ MFC界面读写USB HID设备数据程序.docx

1、C+ MFC界面读写USB HID设备数据程序第一步：列举所有的HID装备：m_ctllHIDdevices.ResetContent(); /这是MFC里面一个list控件,用来显示所有的HID装备的,假如你没有界面,可以不须要此行UpdateData(FALSE); /更新界面CString temp;int Count = 0; /Total number of devices foundDWORD strSize=0,requiredSize=0;BOOL result1,result2;ULONG DeviceInterfaceDetailDataSize;/界说一些变量,今后会用到

2、SP_DEVINFO_DATA DeviceInfoData;SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;PSP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData;/PSP_DEVICE_INTERFACE_DETAIL_DATA test;/第一步：获取deviceIDGUID deviceId;HidD_GetHidGuid(&deviceId);/第二步：获取装备信息HDEVINFO handle;handle = SetupDiGetClassDevs(&deviceId, NUL

3、L, NULL, DIGCF_DEVICEINTERFACE | DIGCF_PRESENT); /Get only HID devices/第三步：对所有的装备进行列举/SetupDiEnumDeviceInterfaces();result1=false; /界说一些变量result2=false;CString temp11=;doDeviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);result1 = SetupDiEnumDeviceInterfaces(handle,NULL, / IN PSP_DEVINFO_

4、DATA DeviceInfoData, OPTIONAL&deviceId,Count,&DeviceInterfaceData);/获得装备具体数据（初步）SetupDiGetDeviceInterfaceDetail(handle,&DeviceInterfaceData,NULL,0,&strSize,NULL);requiredSize=strSize;DeviceInterfaceDetailData=(PSP_DEVICE_INTERFACE_DETAIL_DATA)malloc(requiredSize);DeviceInterfaceDetailData-cbSize=siz

5、eof(SP_DEVICE_INTERFACE_DETAIL_DATA);DeviceInfoData.cbSize=s第一步：列举所有的HID装备：m_ctllHIDdevices.ResetContent(); /这是MFC里面一个list控件,用来显示所有的HID装备的,假如你没有界面,可以不须要此行UpdateData(FALSE); /更新界面CString temp;int Count = 0; /Total number of devices foundDWORD strSize=0,requiredSize=0;BOOL result1,result2;ULONG Device

6、InterfaceDetailDataSize;/界说一些变量,今后会用到SP_DEVINFO_DATA DeviceInfoData;SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;PSP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData;/PSP_DEVICE_INTERFACE_DETAIL_DATA test;/第一步：获取deviceIDGUID deviceId;HidD_GetHidGuid(&deviceId);/第二步：获取装备信息HDEVINFO handle;handle

7、 = SetupDiGetClassDevs(&deviceId, NULL, NULL, DIGCF_DEVICEINTERFACE | DIGCF_PRESENT); /Get only HID devices/第三步：对所有的装备进行列举/SetupDiEnumDeviceInterfaces();result1=false; /界说一些变量result2=false;CString temp11=;doDeviceInterfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);result1 = SetupDiEnumDeviceInte

8、rfaces(handle,NULL, / IN PSP_DEVINFO_DATA DeviceInfoData, OPTIONAL&deviceId,Count,&DeviceInterfaceData);/获得装备具体数据（初步）SetupDiGetDeviceInterfaceDetail(handle,&DeviceInterfaceData,NULL,0,&strSize,NULL);requiredSize=strSize;DeviceInterfaceDetailData=(PSP_DEVICE_INTERFACE_DETAIL_DATA)malloc(requiredSize)

9、;DeviceInterfaceDetailData-cbSize=sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);DeviceInfoData.cbSize=sizeof(SP_DEVINFO_DATA);/再次获得具体数据result2=SetupDiGetDeviceInterfaceDetail(handle,&DeviceInterfaceData,DeviceInterfaceDetailData,strSize,&requiredSize,&DeviceInfoData);/获得装备路径（最主要的部分）temp=DeviceInterfaceDet

10、ailData-DevicePath;UpdateData(FALSE);m_ctllHIDdevices.AddString(temp);Count+; while (result1);UpdateData(false);izeof(SP_DEVINFO_DATA);/再次获得具体数据result2=SetupDiGetDeviceInterfaceDetail(handle,&DeviceInterfaceData,DeviceInterfaceDetailData,strSize,&requiredSize,&DeviceInfoData);/获得装备路径（最主要的部分）temp=Dev

11、iceInterfaceDetailData-DevicePath;UpdateData(FALSE);m_ctllHIDdevices.AddString(temp);Count+; while (result1);UpdateData(false);第二步：轮回读取HID装备数据（依据用户供给的HID的vendorID和productID),并且把字节解码成二进制,在MFC界面上用LED展现：为了不影响主线程的运行,我把读取数据的操纵,放在一个子线程里！每隔50ms去读取一次数据！起首创建一个线程：HANDLE hThread1;bStopHID=false; /这个变量,今后用来停滞线程

12、UpdateData(true); /更新界面,获取变量UpdateData(false);hThread1 = CreateThread(NULL,0,Thread_Enable_Read,(LPVOID)this, NULL, NULL);在线程的程序里：CusbhidDlg *p = ( CusbhidDlg *)pvParam; /获取主窗口的指针,用来挪用主窗口的变量和函数p-UpdateData(true);p-bStopHID=false;CString temp;CString DevicePath;temp=;int Count = 0; /Total number of d

13、evices foundDWORD strSize=0,requiredSize=0;BOOL result1,result2;ULONG DeviceInterfaceDetailDataSize;SP_DEVINFO_DATA DeviceInfoData;SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;PSP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData;/PSP_DEVICE_INTERFACE_DETAIL_DATA test;/1GUID deviceId;HidD_GetHi

14、dGuid(&deviceId);int venderID=p-v_eVendorID; /从窗口里获取用户输入的VendorID int productID=p-v_eProductID;/从窗口里获取用户输入的ProductIDunsigned char inbuffer2; /用来存放读取的数据,请在这里界说你本身须要的长度,我每次读一个字节进来unsigned long numBytesReturned;HIDD_ATTRIBUTES devAttr;PHIDP_PREPARSED_DATA PreparsedData;HIDP_CAPS Capabilities;int readVa

15、lue;bool LED;int flag=0;/2HDEVINFO handle;handle = SetupDiGetClassDevs(&deviceId, NULL, NULL, DIGCF_DEVICEINTERFACE | DIGCF_PRESENT); /Get only HID devicesint i=0;int j=p-m_ctllHIDdevices.GetCount();for (i=0;im_ctllHIDdevices.GetCount();i+)p-m_ctllHIDdevices.GetText(i,temp);DevicePath=temp;/CreateFi

16、le是异常主要的一步,用来树立于HID通讯的句柄HANDLE hCom = CreateFile (DevicePath,GENERIC_READ | GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_EXISTING, 0,NULL);if (hCom = INVALID_HANDLE_VALUE)/AfxMessageBox(Invalide Device Path.);continue;devAttr.Size=sizeof(HIDD_ATTRIBUTES);if (!HidD_GetAttributes(hCom,&d

17、evAttr)CloseHandle(hCom);AfxMessageBox(Cannot get the parameters of the HID.);return 0;/temp.Format(Vendor ID: %d, Product ID:%d,devAttr.VendorID,devAttr.ProductID); /Compare with the Vendor ID and Product ID from Nakamura-san/AfxMessageBox(temp);if (!HidD_GetPreparsedData(hCom,&PreparsedData)CloseH

18、andle(hCom);AfxMessageBox(Cannot get the Preparsed Data.);return 0;if(!HidP_GetCaps(PreparsedData,&Capabilities)CloseHandle(hCom);AfxMessageBox(Cannot get the Cap Data.);return 0;if (devAttr.VendorID = venderID & devAttr.ProductID = productID)while(1)result1 = ReadFile(hCom, &inbuffer0, Capabilities

19、.InputReportByteLength, &numBytesReturned, 0);temp=inbuffer;/p-m_eDataRead=CString(inbuffer);/p-UpdateData(false);if(!result1)AfxMessageBox(Cannot Read Data.);return 0;readValue=inbuffer1;p-m_eDataRead.Format(%d,readValue);/下面是我把数据从10进制转换成二进制,并且点亮LED (一个字节有8个bits,可以点亮8个LEDfor (int k=0;km_sDynLED0.Sw

20、itchOff();elsep-m_sDynLED0.SwitchOn();else if (k=1)if (flag=0)p-m_sDynLED1.SwitchOff();elsep-m_sDynLED1.SwitchOn();else if (k=2)if (flag=0)p-m_sDynLED2.SwitchOff();elsep-m_sDynLED2.SwitchOn();else if (k=3)if (flag=0)p-m_sDynLED3.SwitchOff();elsep-m_sDynLED3.SwitchOn();else if (k=4)if (flag=0)p-m_sDy

21、nLED4.SwitchOff();elsep-m_sDynLED4.SwitchOn();else if (k=5)if (flag=0)p-m_sDynLED5.SwitchOff();elsep-m_sDynLED5.SwitchOn();else if (k=6)if (flag=0)p-m_sDynLED6.SwitchOff();elsep-m_sDynLED6.SwitchOn();else if (k=7)if (flag=0)p-m_sDynLED7.SwitchOff();elsep-m_sDynLED7.SwitchOn();p-UpdateData(false);:Sl

22、eep(50);/断定用户是否点击停滞按钮,若是,则退出if(p-bStopHID)AfxMessageBox(stopped.);return 0;if (i=j)AfxMessageBox(There is no such HID device.);return 0;第三步：向HID装备写数据（依据用户供给的HID的vendorID和productID),用户输入的是二进制数据：与读的程序一样,独一差别就是红色那部分！UpdateData(true);bStopHID=false;CString temp;CString DevicePath;temp=;int Count = 0; /T

23、otal number of devices foundDWORD strSize=0,requiredSize=0;BOOL result1,result2;ULONG DeviceInterfaceDetailDataSize;SP_DEVINFO_DATA DeviceInfoData;SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;PSP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData;/PSP_DEVICE_INTERFACE_DETAIL_DATA test;/1GUID dev

24、iceId;HidD_GetHidGuid(&deviceId);int venderID=v_eVendorID;int productID=v_eProductID;unsigned char inbuffer2;unsigned long numBytesReturned;HIDD_ATTRIBUTES devAttr;PHIDP_PREPARSED_DATA PreparsedData;HIDP_CAPS Capabilities;int readValue;bool LED;int flag=0;inbuffer0=0; /把界面里的二进制转换成10进制inbuffer1=m_eBy

25、te0*1+m_eByte1*2+m_eByte2*4+m_eByte3*8+m_eByte4*16+m_eByte5*32+m_eByte6*64+m_eByte7*128;v_eDataToWrite=inbuffer1;UpdateData(false);/2HDEVINFO handle;handle = SetupDiGetClassDevs(&deviceId, NULL, NULL, DIGCF_DEVICEINTERFACE | DIGCF_PRESENT); /Get only HID devicesint i=0;int j=m_ctllHIDdevices.GetCount();for (i=0;im_eDataRead=CString(inbuffer);/p-UpdateData(false);if(!result1)AfxMessageBox(Cannot Write Data.);return;AfxMessageBox(Suncess.);break;if (i=j)AfxMessageBox(There is no such HID device.);return;