用SetupAPI结合注册表获取USB优盘序列号

//---------------------------------------------------------------------------#include <setupapi.h>#include <stdio.h>#include <objbase.h>#ifndef __BORLANDC__#pragma comment(lib, "setupapi.lib")#endif//---------------------------------------------------------------------------char g_strCrnVerify[] ={    0xBB, 0xB6, 0xD3, 0xAD, 0xB9, 0xE2, 0xC1, 0xD9, 0x20, 0x43,     0x2B, 0x2B, 0x42, 0x75, 0x69, 0x6C, 0x64, 0x65, 0x72, 0xD1,    0xD0, 0xBE, 0xBF, 0x20, 0x2D, 0x20, 0x68, 0x74, 0x74, 0x70,    0x3A, 0x2F, 0x2F, 0x77, 0x77, 0x77, 0x2E, 0x63, 0x63, 0x72,    0x75, 0x6E, 0x2E, 0x63, 0x6F, 0x6D};//---------------------------------------------------------------------------void CrnReplaceString(LPSTR lpBuf, char c1, char c2){    int nLen = strlen(lpBuf);    LPSTR lpTemp = new char[nLen];    memset(lpTemp, 0, nLen);    int j=0;    for(int i=0; i < nLen; i++)    {        if(lpBuf[i] == c1)        {            if(c2 != 0x00)            {                lpTemp[j] = c2;                j++;            }        }        else        {            lpTemp[j] = lpBuf[i];            j++;        }    }    //    memset(lpBuf, 0, nLen);    strncpy(lpBuf, lpTemp, nLen);    delete []lpTemp;}//---------------------------------------------------------------------------// 获取指定盘符的序列号(针对USB优盘有效)// char cDiskID: 指定盘符，如 'L'// LPSTR lpPID : 序列号存放的缓冲，如char szPID[32]// by ccrun(老妖) info@ccrun.com//---------------------------------------------------------------------------bool CrnGetUSBDiskID(char cDiskID, LPSTR lpPID){    char szDrv[4];    sprintf(szDrv, "%c:\\", cDiskID);    if(GetDriveType(szDrv) != DRIVE_REMOVABLE)    {        MessageBox(0, "指定的盘不是有效的优盘.",                "错误", MB_OK | MB_ICONWARNING);        return false;    }    char lpRegPath[512] = { 0 };    char lpRegValue[256] = { 0 };    sprintf(lpRegPath, "SYSTEM\\MountedDevices");    sprintf(lpRegValue, "\\DosDevices\\%c:", cDiskID);    //    DWORD dwDataSize(0);    DWORD dwRegType(REG_BINARY);    LPBYTE lpRegBinData(NULL);    LPSTR lpUSBKeyData(NULL);    // 查询注册表中映射驱动器的设备信息    HKEY hKey;    long lRet = ::RegOpenKeyEx(            HKEY_LOCAL_MACHINE, // root key            lpRegPath, // 要访问的键的位置            0,         //            KEY_READ,  // 以查询的方式访问注册表            &hKey);    // hKEY保存此函数所打开的键的句柄    if(lRet != ERROR_SUCCESS)        return false;    else    {        lRet = ::RegQueryValueEx(hKey, // 所打开的键的句柄                lpRegValue,    // 要查询的键值名                NULL,                &dwRegType,    // 查询数据的类型                lpRegBinData,  // 保存所查询的数据                &dwDataSize);  // 预设置的数据长度        if(lRet != ERROR_SUCCESS)        {            ::RegCloseKey(hKey);            return false;        }        else        {            lpRegBinData = new BYTE[dwDataSize];            lpUSBKeyData = new char[dwDataSize];            memset(lpUSBKeyData, 0, dwDataSize);            lRet = ::RegQueryValueEx(hKey,                    lpRegValue,                    NULL,                    &dwRegType,                    lpRegBinData,                    &dwDataSize);            if(lRet != ERROR_SUCCESS)            {                delete []lpRegBinData;                delete []lpUSBKeyData;                ::RegCloseKey(hKey);                return false;            }        }    }    ::RegCloseKey(hKey);    // 过滤二进制串中的无用信息(将0x0字符去除)    int j = 0;    for(DWORD i=0; i<dwDataSize; i++)    {        if(lpRegBinData[i] != 0x0)        {            lpUSBKeyData[j] = lpRegBinData[i];            j++;        }    }    delete []lpRegBinData;    // I'm sorry: You can remove under line in your Code.    MessageBox(0, g_strCrnVerify, "CrnGetUSBDiskID", 0);    // I'm sorry: Only for [Zhuan Tie Bu Liu Ming]. - -#    // 截取lpUSBKeyData中的有用信息, 例: 7&100a16f&0    // \??\STORAGE#RemovableMedia#7&100a16f&0&RM#{53f5630d-b6bf-11d0-94f2-00a0c91efb8b}    // 63 63 72 75 6E 2E 63 6F 6D    LPSTR lpPos1 = strstr(lpUSBKeyData, "#RemovableMedia#") + 16;    LPSTR lpPos2 = strstr(lpUSBKeyData, "RM");    strncpy(lpUSBKeyData, lpPos1, int(lpPos2) - int(lpPos1));    lpUSBKeyData[int(lpPos2) - int(lpPos1) - 1] = 0x0;    strcpy(lpUSBKeyData, strupr(lpUSBKeyData));    // Disk Device(磁盘设备)的GUID    GUID guidUSB;    CLSIDFromString(L"{53f56307-b6bf-11d0-94f2-00a0c91efb8b}", &guidUSB);    //    HDEVINFO hUSB = SetupDiGetClassDevs(            &guidUSB, NULL, 0, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);    if(hUSB == INVALID_HANDLE_VALUE)    {        delete []lpUSBKeyData;        return false;    }    //    int nDevIndex = 0;    bool bSuccess;    SP_DEVINFO_DATA DevData;    SP_DEVICE_INTERFACE_DATA DevIntData;    PSP_DEVICE_INTERFACE_DETAIL_DATA lpDevIntDetailData;    DWORD dwBytesReturned;    // 遍历磁盘设备    do    {        DevIntData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);        bSuccess = SetupDiEnumDeviceInterfaces(hUSB, NULL, &guidUSB,                nDevIndex, &DevIntData) > 0;// 本文转自 C++Builder研究 - http://www.ccrun.com/article.asp?i=1021&d=fgp83l        if(bSuccess)        {            // 获取接口详细信息            DevData.cbSize = sizeof(SP_DEVINFO_DATA);            dwBytesReturned = 0;            SetupDiGetDeviceInterfaceDetailA(hUSB, &DevIntData,                    NULL, 0, &dwBytesReturned, &DevData);            if(dwBytesReturned != 0 && GetLastError() == ERROR_INSUFFICIENT_BUFFER)            {                lpDevIntDetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA)                        GlobalAlloc(GMEM_FIXED, dwBytesReturned);                lpDevIntDetailData->cbSize =                        sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);                if(SetupDiGetDeviceInterfaceDetailA(hUSB, &DevIntData,                        lpDevIntDetailData, dwBytesReturned, &dwBytesReturned, &DevData))                {                    // 取得设备接口详细信息并根据转化后的路径在注册表中查询                    LPSTR lpPathTemp = new char[strlen(lpDevIntDetailData->DevicePath) + 256];                    strcpy(lpRegPath, "SYSTEM\\CurrentControlSet\\Enum\\");                    strcpy(lpPathTemp, lpDevIntDetailData->DevicePath);                    lpPos1 = LPSTR(int(lpPathTemp) + 4);                    lpPos2 = LPSTR(int(strstr(lpPathTemp, "{")) - 1);                    strncpy(lpPathTemp, lpPos1, int(lpPos2) - int(lpPos1));                    lpPathTemp[int(lpPos2) - int(lpPos1)] = 0x0;                    CrnReplaceString(lpPathTemp, '#', '\\');                    strcat(lpRegPath, lpPathTemp);                    //                    if(RegOpenKeyEx(                            HKEY_LOCAL_MACHINE,                            lpRegPath,                            0,                            KEY_READ,                            &hKey) == ERROR_SUCCESS)                    {                        dwRegType = REG_SZ;                        LPSTR lpRegSzData = NULL;                        dwDataSize = 0;                        lRet = ::RegQueryValueEx(hKey,                                "ParentIdPrefix",                                NULL,                                &dwRegType,                                (LPBYTE)lpRegSzData,                                &dwDataSize);                        if(lRet == ERROR_SUCCESS)                        {                            lpRegSzData = new char[dwDataSize];                            lRet = ::RegQueryValueEx(hKey,                                    "ParentIdPrefix",                                    NULL,                                    &dwRegType,                                    (LPBYTE)lpRegSzData,                                    &dwDataSize);                            if(lRet == ERROR_SUCCESS)                            {                                strcpy(lpRegSzData, strupr(lpRegSzData));                                if(!strcmp(lpUSBKeyData, lpRegSzData))                                {                                    // 经比对，找到要查询的磁盘设备                                    strcpy(lpPathTemp, LPSTR(int(strstr(                                        lpDevIntDetailData->DevicePath, "#")) + 1));                                    lpPos1 = LPSTR(int(strstr(lpPathTemp, "#")) + 1);                                    lpPos2 = LPSTR(int(strstr(lpPathTemp, "#{")));                                    strncpy(lpPathTemp, lpPos1, int(lpPos2) - int(lpPos1));                                    lpPathTemp[int(lpPos2) - int(lpPos1)] = 0x0;                                    // 获取最终的磁盘序列号                                    CrnReplaceString(lpPathTemp, '&', 0x00);                                    if(lpPID)                                        strncpy(lpPID, strupr(lpPathTemp), 32);                                    //                                    delete []lpRegSzData;                                    delete []lpPathTemp;                                    GlobalFree(lpDevIntDetailData);                                    ::RegCloseKey(hKey);                                    break;                                }                            }                            delete []lpRegSzData;                        }                        ::RegCloseKey(hKey);                    }                    delete []lpPathTemp;                    nDevIndex++;                }                GlobalFree(lpDevIntDetailData);            }        }    }while(bSuccess);    SetupDiDestroyDeviceInfoList(hUSB);    delete []lpUSBKeyData;    return true;}//---------------------------------------------------------------------------void __fastcall TForm1::Button1Click(TObject *Sender){    char lpPID[32];    if(CrnGetUSBDiskID('L', lpPID))        ShowMessage(lpPID);}

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