VC获取光驱的code号

// myregionDlg.cpp : implementation file // #include "stdafx.h" #include "myregion.h" #include "myregionDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CMyregionDlg dialog CMyregionDlg::CMyregionDlg(CWnd* pParent /*=NULL*/) : CDialog(CMyregionDlg::IDD, pParent) { //{{AFX_DATA_INIT(CMyregionDlg) // NOTE: the ClassWizard will add member initialization here //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CMyregionDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CMyregionDlg) DDX_Control(pDX, IDC_EDT_REGION, m_edtRegion); DDX_Control(pDX, IDC_EDT_INQUIRY, m_edtInquiry); DDX_Control(pDX, IDC_DRIVES_COMBO, m_cbDrives); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CMyregionDlg, CDialog) //{{AFX_MSG_MAP(CMyregionDlg) ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BTN_REFRESH, OnBtnRefresh) ON_CBN_SELCHANGE(IDC_DRIVES_COMBO, OnSelchangeDrivesCombo) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CMyregionDlg message handlers BOOL CMyregionDlg::OnInitDialog() { CDialog::OnInitDialog(); // Set the icon for this dialog. The framework does this automatically // when the application's main window is not a dialog SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon PopulateDrivesList(); UpdateDeviceInfos(); return TRUE; // return TRUE unless you set the focus to a control } // If you add a minimize button to your dialog, you will need the code below // to draw the icon. For MFC applications using the document/view model, // this is automatically done for you by the framework. void CMyregionDlg::PopulateDrivesList() { CString s; m_cbDrives.ResetContent(); DWORD mask = ::GetLogicalDrives(); int j = 0, i, lastcd = -1; for (i=0;i<26;i++) { if (((1 << i) & mask) == 0) continue; s.Format(_T("%c:\\"), 'A'+i); switch (GetDriveType(s)) { case DRIVE_CDROM: s += _T(" (cdrom/dvd)"); lastcd = i; break; default: s += _T(" (other)"); break; } j = m_cbDrives.AddString(s); m_cbDrives.SetItemData(j, i); if (lastcd != -1) { m_cbDrives.SetCurSel(j); lastcd = -1; } } } void CMyregionDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // Draw the icon dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); } } // The system calls this to obtain the cursor to display while the user drags // the minimized window. HCURSOR CMyregionDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CMyregionDlg::OnBtnRefresh() { PopulateDrivesList(); } bool carry_cdb(HANDLE device, void *cdb, UCHAR cdb_length, void *buffer, DWORD buffer_length, int data_in = SCSI_IOCTL_DATA_IN) { 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; BOOL bRet = DeviceIoControl( device, IOCTL_SCSI_PASS_THROUGH_DIRECT, (LPVOID)&cmd, sizeof(cmd), (LPVOID)&cmd, sizeof(cmd), &returned, NULL); #ifdef _DEBUG DWORD err = ::GetLastError(); if (err != ERROR_SUCCESS) { printf("carry_cdb(): last error = %08X\n", err); } #endif return bRet ? true : false; } void CMyregionDlg::UpdateDeviceInfos() { char devname[20]; HANDLE device; sprintf(devname, "\\\\.\\%c:", m_cbDrives.GetItemData(m_cbDrives.GetCurSel()) + 'A'); device = ::CreateFile(devname, GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0); CString strInquiry = "Could not retrieve Inquiry information!"; CString strRegion = "Could not retrieve region info!"; m_edtInquiry.SetWindowText(strInquiry); m_edtRegion.SetWindowText(strRegion); if (device == (HANDLE)-1) { MessageBox("Cannot access the drive!"); return; } // Get Inquiry information do { CDB_INQUIRY6 inquiry = {0}; SCSI_INQUIRY_STD_DATA data = {0}; inquiry.AllocationLength = sizeof(data); inquiry.OperationCode6 = SCSIOP_INQUIRY; if (!carry_cdb(device, &inquiry, sizeof(inquiry), &data, sizeof(data))) break; strInquiry = ""; CString s; char snip[100] = {0}; int i; strncpy(snip, data.vendor_id, i = sizeof(data.vendor_id)); snip[i] = 0; s.Format("Vendor id: %s\r\n", snip); strInquiry += s; strncpy(snip, data.product_id , i = sizeof(data.product_id)); snip[i] = 0; s.Format("Product id: %s\r\n", snip); strInquiry += s; strncpy(snip, data.product_revision_level , i = sizeof(data.product_revision_level)); snip[i] = 0; s.Format("Product rev level: %s\r\n", snip); strInquiry += s; } while (0); do { static char *region_names[] = { "United States of America, Canada", // Region 1 "Europe, including France, Greece, Turkey, Egypt, Arabia, Japan and South Africa", // 2 "Korea, Thailand, Vietnam, Borneo and Indonesia", // 3 "Australia and New Zealand, Mexico, the Caribbean, and South America", // 4 "India, Africa, Russia and former USSR countries", // 5 "Peoples Republic of China", // 6 "Unused", "Airlines/Cruise Ships", "Expansion (often used as region free)" }; static char *region_set[] = { "No region set", // 0 "Region set", // 1 "Drive region is set. Additional restrictions required to make changes", // 2 "Region set permanently, but may be reset by vendor", // 3 }; REPORT_KEY_DATA_RPC_STATE region = {0}; CDB_REPORT_KEY report = {0}; report.OperationCode = SCSIOP_REPORT_KEY; report.AllocationLength = sizeof(REPORT_KEY_DATA_RPC_STATE); report.AGID = 0; report.KeyFormat = KEY_FORMAT_RPC_STATE; if (!carry_cdb(device, &report, sizeof(report), &region, sizeof(region))) break; unsigned char region_code = ~region.region_mask; int i; char *region_name = "No Region Coding"; for (i=7;i>=0;i--) { if ( (1 << i) & region_code) { region_name = region_names[i]; break; } } strRegion.Format( "Vendor changes: %d\r\n" "User changes: %d\r\n" "Region name: %s\r\n" "Type code: %s\r\n", region.nb_vendor_resets, region.nb_user_changes, region_name, region_set[region.type_code] ); } while (0); m_edtInquiry.SetWindowText(strInquiry); m_edtRegion.SetWindowText(strRegion); ::CloseHandle(device); } void CMyregio