可直接编译（设置成：使用多字节字符集）
转来的，代码：
1 /* 2 http://www.experts-exchange.com/Programming/Editors_IDEs/Q_24506125.html 3 */ 4 5 #include <stdio.h> 6 #include <windows.h> 7 #include <setupapi.h> 8 #include <devguid.h> 9 #include <winioctl.h> 10 #include <regstr.h> 11 #include <tchar.h> 12 #include <string> 13 using namespace std; 14 15 #pragma comment(lib,"setupapi.lib") 16 17 /* 18 获取设备数 19 路径: 如G: 20 设备数 21 */ 22 BOOL GetDeviceNumber(LPCTSTR pszDevPath, DWORD& dwDevNum) { 23 24 BOOL bRC = FALSE; 25 26 HANDLE hDrive = CreateFile( 27 pszDevPath, 28 0, 29 FILE_SHARE_READ | FILE_SHARE_WRITE, 30 NULL, 31 OPEN_EXISTING, 32 NULL, 33 NULL 34 ); 35 36 if (INVALID_HANDLE_VALUE != hDrive) { 37 38 STORAGE_DEVICE_NUMBER sdn; 39 DWORD dwBytesReturned = 0; 40 41 bRC = DeviceIoControl( 42 hDrive, 43 IOCTL_STORAGE_GET_DEVICE_NUMBER, 44 NULL, 45 0, 46 &sdn, 47 sizeof(sdn), 48 &dwBytesReturned, 49 NULL 50 ); 51 52 53 if (bRC) dwDevNum = sdn.DeviceNumber; 54 55 CloseHandle(hDrive); 56 }else printf("Error:[%d] (%s) ",GetLastError(),pszDevPath); 57 58 return bRC; 59 } 60 61 62 int GetDeviceDescription(LPCTSTR pszDrive, TCHAR* pszDesc, const size_t szDescSize) 63 { 64 TCHAR acDevName[MAX_PATH]; 65 // QueryDosDevice(pszDrive,acDevName,MAX_PATH); 66 // printf("Test: %s ",acDevName); 67 _stprintf(acDevName,"\\.\%s", pszDrive); 68 DWORD dwNumOfInterest = -1;; 69 GetDeviceNumber(acDevName,dwNumOfInterest); 70 //printf("DeviceNumber:[%d] ",dwNumOfInterest); 71 GUID* guid = (GUID*)&GUID_DEVINTERFACE_DISK; 72 // Get device interface info set handle 73 // for all devices attached to system 74 HDEVINFO hDevInfo = SetupDiGetClassDevs(guid, NULL, NULL, 75 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 76 if (hDevInfo == INVALID_HANDLE_VALUE) { 77 return 0; 78 } 79 80 // Retrieve a context structure for a device interface 81 // of a device information set. 82 DWORD dwIndex = 0; 83 BOOL bRet = FALSE; 84 85 BYTE Buf[1024]; 86 PSP_DEVICE_INTERFACE_DETAIL_DATA pspdidd = 87 (PSP_DEVICE_INTERFACE_DETAIL_DATA)Buf; 88 SP_DEVICE_INTERFACE_DATA spdid; 89 SP_DEVINFO_DATA spdd; 90 DWORD dwSize; 91 spdid.cbSize = sizeof(spdid); 92 while ( true ) { 93 bRet = SetupDiEnumDeviceInterfaces(hDevInfo, NULL, 94 guid, dwIndex, &spdid); 95 96 if (!bRet) { 97 break; 98 } 99 100 dwSize = 0; 101 SetupDiGetDeviceInterfaceDetail(hDevInfo, 102 &spdid, NULL, 0, &dwSize, NULL); 103 104 if ( dwSize!=0 && dwSize<=sizeof(Buf) ) { 105 pspdidd->cbSize = sizeof(*pspdidd); // 5 Bytes! 106 107 108 ZeroMemory((PVOID)&spdd, sizeof(spdd)); 109 spdd.cbSize = sizeof(spdd); 110 111 long res = 112 SetupDiGetDeviceInterfaceDetail(hDevInfo, &spdid, pspdidd, 113 dwSize, &dwSize, 114 &spdd); 115 116 printf("Result:[%s] ",pspdidd->DevicePath); // <--------- here! 117 118 DWORD dwType; 119 LPTSTR buffer = NULL; 120 DWORD buffersize = 0; 121 122 while (!SetupDiGetDeviceRegistryProperty( 123 hDevInfo, 124 &spdd, 125 SPDRP_FRIENDLYNAME, 126 &dwType, 127 (PBYTE)buffer, 128 buffersize, 129 &buffersize)) 130 { 131 if (GetLastError() == 132 ERROR_INSUFFICIENT_BUFFER) 133 { 134 // Change the buffer size. 135 if (buffer) LocalFree(buffer); 136 // Double the size to avoid problems on 137 // W2k MBCS systems per KB 888609. 138 buffer =(LPTSTR) LocalAlloc(LPTR,buffersize * 2); 139 } 140 else 141 { 142 // Insert error handling here. 143 break; 144 } 145 } 146 147 DWORD dwNum = 0;; 148 GetDeviceNumber(pspdidd->DevicePath,dwNum); 149 //printf("DeviceNumber:[%d] ",dwNum); 150 151 //if (dwNumOfInterest == dwNum) _stprintf(pszDesc,_T("%s"),buffer); 152 if (dwNumOfInterest == dwNum) _stprintf(pszDesc,_T("%s"),pspdidd->DevicePath); 153 154 //printf("Result:[%s] ",buffer); 155 if (buffer) LocalFree(buffer); 156 157 } 158 dwIndex++; 159 } 160 SetupDiDestroyDeviceInfoList(hDevInfo); 161 return 0; 162 } 163 164 void main (int argc, char** argv) { 165 TCHAR acDesc[1024] = "<unknown>"; 166 TCHAR* pszDrive; 167 if (2 != argc) { 168 169 printf("Usage: usbdev.exe <drive letter> (ex.: 'usbdev f:') "); 170 } 171 pszDrive = *(argv + 1); 172 GetDeviceDescription(pszDrive, acDesc, 1024); 173 _tprintf(" Description for %s %s ", pszDrive, acDesc); 174 system("pause"); 175 }<br><br>
分类: C/C++