获得“光驱和刻录机中光盘”的信息

#include "StdAfx.h" #include "GetDeviceMessage.h" // // 获取光驱信息函数 // 参数：一: CreateFile打开的句柄 // 二: 输入结构体 // 三: 输入结构体的大小 // 四: 返回输出结构体 // 五: 输出结构体的大小 // 六: 函数得到信息后将信息做何操作 // bool carry_cdb(HANDLE device, void *cdb, UCHAR cdb_length, void *buffer, DWORD buffer_length, int data_in) { OutputDebugString("carry_cdb开始执行"); DWORD returned; // size of SCSI_PASS_THROUGH + 96 bytes for sense data unsigned char cmd[sizeof(SCSI_PASS_THROUGH_DIRECT) + 96] = {0}; // shortcut to the buffer SCSI_PASS_THROUGH_DIRECT *pcmd = (SCSI_PASS_THROUGH_DIRECT *) cmd; // Copy the CDB to the SCSI_PASS_THROUGH structure ::memcpy(pcmd->Cdb, cdb, cdb_length); pcmd->DataBuffer = buffer; pcmd->DataTransferLength = buffer_length; pcmd->DataIn = data_in; pcmd->CdbLength = cdb_length; pcmd->Length = sizeof(SCSI_PASS_THROUGH_DIRECT); pcmd->SenseInfoLength = sizeof(cmd) - sizeof(SCSI_PASS_THROUGH_DIRECT); pcmd->SenseInfoOffset = sizeof(SCSI_PASS_THROUGH_DIRECT); pcmd->TimeOutValue = 6000; OutputDebugString("传入参数获取成功"); BOOL bRet = DeviceIoControl( device, IOCTL_SCSI_PASS_THROUGH_DIRECT, (LPVOID)&cmd, sizeof(cmd), (LPVOID)&cmd, sizeof(cmd), &returned, NULL); if (bRet) { OutputDebugString("信息获取成功"); return TRUE; } else { return FALSE; } } // // 根据所传盘符获得光驱信息保存进参数二的结构体（所传盘符格式以GetDriveType返回为基准,例如（G:\\）） // 返回：-1 打开句柄失败 // -2 获取信息失败 // 0 函数执行成功 // int GetDeviceMessage(PCSTR str, CD_DRIVER_MESSAGE *strDeviceMessage) { OutputDebugString("GetDeviceMessage"); // 获得CreateFile可打开文件名 CString strDevname; strDevname.Format("\\\\.\\%s", str); strDevname= strDevname.Left(strDevname.GetLength()-1); OutputDebugString(strDevname); HANDLE device = ::CreateFile(strDevname, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0); // 打开句柄失败 if (device == (HANDLE)-1) { return -1; } OutputDebugString("获取句柄成功"); // 判定需要查询什么的结构体 CDB_INQUIRY6 inquiry = {0}; // 保存光驱信息的结构 SCSI_INQUIRY_STD_DATA data = {0}; inquiry.AllocationLength = sizeof(data); inquiry.OperationCode6 = SCSIOP_INQUIRY; if (!carry_cdb(device, &inquiry, sizeof(inquiry), &data, sizeof(data))) { OutputDebugString("获取信息失败"); ::CloseHandle(device); return -2; } CString s; char snip[100] = {0}; CD_DRIVER_MESSAGE strDevieMsg; // 将当前盘符保存进结构体 strncpy(strDeviceMessage->letter ,str, 31); OutputDebugString(strDeviceMessage->letter); int i; strncpy(snip, data.vendor_id, i = sizeof(data.vendor_id)); snip[i] =0; s.Format("%s", snip); // strDeviceMessage->vendor_id += s; strncpy(strDeviceMessage->vendor_id ,s, 31); OutputDebugString(strDeviceMessage->vendor_id); strncpy(snip, data.product_id , i = sizeof(data.product_id)); snip[i] = 0; s.Format("%s", snip); strncpy(strDeviceMessage->product_id ,s, 31); // strDeviceMessage->product_id += s; OutputDebugString(strDeviceMessage->product_id); strncpy(snip, data.product_revision_level , i = sizeof(data.product_revision_level)); snip[i] = 0; s.Format("%s", snip); strncpy(strDeviceMessage->product_revision_level ,s, 63); // strDeviceMessage->product_revision_level += s; OutputDebugString(strDeviceMessage->product_revision_level); CloseHandle(device); OutputDebugString("GetDeviceMessage执行成功"); return 0; } // // 获得有盘的光驱的信息(函数内部自动获取有盘光驱是哪些) // 返回有盘光驱个数（>=0都算成功） // 返回-1 代表打开该光驱句柄失败 // 返回-2 代表读取该光驱信息失败 // int UpdateDeviceInfos(CD_DRIVER_MESSAGE* strDeviceMessage) { int iNumber = 0; // 保存正在读盘的光驱个数 // 获得当前光驱的盘符保存进CStringArray TCHAR buf[100]; DWORD len = GetLogicalDriveStrings(sizeof(buf)/sizeof(TCHAR),buf); LPCTSTR sDrivePath = NULL; CStringArray strArray; for (TCHAR* s=buf; *s; s+=_tcslen(s)+1) { LPCTSTR sDrivePath = s; UINT uDriveType = GetDriveType(sDrivePath); if (uDriveType == DRIVE_CDROM) { strArray.Add(sDrivePath); } } // 根据盘符获取光驱信息 for(int j= 0; j<strArray.GetSize(); j++) { // 判断光驱是否正在使用 if(GetVolumeInformation(strArray.GetAt(j), NULL,0,NULL,NULL,0,NULL,0)) { // 正在使用 获取光驱信息保存进结构体数组 int iFlag = GetDeviceMessage(strArray.GetAt(j), &strDeviceMessage[iNumber]); // 判断执行状况 if (iFlag != 0) { return iFlag; } iNumber++; } } // 返回有盘光驱数 return iNumber; }