21 //Hid(DWORD Vid, DWORD Pid) {}
22 ~Hid() ;
23 BOOL Connect() ;
24 //BOOL ChangeDevice() {}
25 BOOL WriteHid(const BYTE * WriteBuff);
26 BOOL ReadHid(BYTE * ReadBuff);
27 BOOL IsWriteValid() const { return m_WriteValid ; }
28 BOOL IsReadValid() const { return m_ReadValid ; }
29 BOOL IsConnected() const { return m_IsConnected; }
30 const string & GetDeviceIDDesc() const { return m_DeviceIdStr ;}
31 private:
32 BOOL GetWRHandle() ;
33 private:
34 HANDLE m_WriteHandle;
35 HANDLE m_ReadHandle ;
36 string m_DeviceIdStr;//设备描述字符串
37 DWORD m_PID;
38 DWORD m_VID;
39 BOOL m_IsConnected ;//是否已连接上
40 BOOL m_ReadValid;//是否可进行读操作
41 BOOL m_WriteValid;//是否可进行写操作
42 BYTE m_RWBuff[USB_BUFF_SIZE+1] ;//读写缓冲
43
44
45 } ;
46
47
48
49 #endif
50
51
52 /*hic.cpp源文件*/
53
54 #include “Hid.h”
55
56 Hid::Hid(const string &DeviceIdStr):
57 m_DeviceIdStr(DeviceIdStr)
58 {
59
60 m_WriteHandle = INVALID_HANDLE_VALUE ;
61 m_ReadHandle = INVALID_HANDLE_VALUE ;
62 m_PID = 0;
63 m_VID = 0;
64 m_IsConnected = FALSE ;
65 m_ReadValid = FALSE ;
66 m_WriteValid = FALSE;
67 strcpy((char *)m_RWBuff,“”) ;
68 }
69
70 BOOL Hid::GetWRHandle()
71 {
72 GUID InterfaceClassGuid =
73 {0x4d1e55b2, 0xf16f, 0x11cf, 0x88, 0xcb, 0x00, 0x11, 0x11, 0x00, 0x00, 0x30};
74 HDEVINFO DeviceInfoTable = INVALID_HANDLE_VALUE;
75 PSP_DEVICE_INTERFACE_DATA InterfaceDataStructure = new SP_DEVICE_INTERFACE_DATA;
76 PSP_DEVICE_INTERFACE_DETAIL_DATA DetailedInterfaceDataStructure = new SP_DEVICE_INTERFACE_DETAIL_DATA;
77 SP_DEVINFO_DATA DevInfoData;
78
79 DWORD InterfaceIndex = 0;
80 DWORD StatusLastError = 0;
81 DWORD dwRegType;
82 DWORD dwRegSize;
83 DWORD StructureSize = 0;
84 PBYTE PropertyValueBuffer;
85 bool MatchFound = false;
86 DWORD ErrorStatus;
87 DeviceInfoTable = SetupDiGetClassDevs(&InterfaceClassGuid, NULL, NULL, DIGCF_PRESENT “ DIGCF_DEVICEINTERFACE);
88 while(true)
89 {
90 InterfaceDataStructure-》cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
91 if(SetupDiEnumDeviceInterfaces(DeviceInfoTable, NULL, &InterfaceClassGuid, InterfaceIndex, InterfaceDataStructure))
92 {
93 ErrorStatus = GetLastError();
94 if(ERROR_NO_MORE_ITEMS == ErrorStatus)
95 {
96 SetupDiDestroyDeviceInfoList(DeviceInfoTable);
97 return FALSE;
98 }
99 }
100 else
101 {
102
103 ErrorStatus = GetLastError();