得到一些系统信息

得到一些系统信息SYSTEM_INFO SystemInfo = { 0 };::GetSystemInfo(&SystemInfo);//-------x-------MEMORYSTATUS MemoryStatus = { 0 };MemoryStatus.dwLength = sizeof(MEMORYSTATUS);::GlobalMemoryStatus(&MemoryStatus);//-------x-------CString strComputerName;::GetComputerName(strComputerName.GetBuffer(MAX_COMPUTERNAME_LENGTH+1), MAX_COMPUTERNAME_LENGTH+1);strComputerName.ReleaseBuffer();//-------x--------struct PHYDRIVEINFO{CString m_sDrive;DISK_GEOMETRY m_DiskGeometry;CByteArray m_arrDriveLayout;PHYDRIVEINFO() { ::ZeroMemory(&m_DiskGeometry, sizeof(DISK_GEOMETRY)); }PHYDRIVEINFO(PHYDRIVEINFO& obj) { ::ZeroMemory(&m_DiskGeometry, sizeof(DISK_GEOMETRY)); }PHYDRIVEINFO& operator=(PHYDRIVEINFO& obj) { return *this; }PHYDRIVEINFO& operator=(LPCTSTR lpszDrive) { m_sDrive = lpszDrive; return *this; }};CArray arrPhysicalDrives;const int MAXPHYDRIVE = 16;const CString sFileNamePrefix = _T("\\\\.\\");CString sFileName;CString sFilePath;HANDLE hFile = INVALID_HANDLE_VALUE;for (int i = 0; i < MAXPHYDRIVE; i++){sFileName.Format(_T("PHYSICALDRIVE%d"), i);sFilePath = sFileNamePrefix + sFileName;hFile = ::CreateFile(sFilePath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL, NULL);if (hFile != INVALID_HANDLE_VALUE){int nIndex = arrPhysicalDrives.Add(sFileName);PHYDRIVEINFO& rPhyDriveInfo = arrPhysicalDrives.ElementAt(nIndex);DWORD dwBytesReturned = 0;::DeviceIoControl(hFile, IOCTL_DISK_GET_DRIVE_GEOMETRY, NULL, 0,&rPhyDriveInfo.m_DiskGeometry,sizeof(DISK_GEOMETRY), &dwBytesReturned, NULL);int cPartns = 4;while (TRUE){rPhyDriveInfo.arrDriveLayout.SetSize(sizeof(DRIVE_LAYOUT_INFORMATION) +cPartns*sizeof(PARTITION_INFORMATION));::ZeroMemory(rPhyDriveInfo.arrDriveLayout.GetData(),rPhyDriveInfo.arrDriveLayout.GetSize());if (::DeviceIoControl(hFile, IOCTL_DISK_GET_DRIVE_LAYOUT, NULL, 0,rPhyDriveInfo.arrDriveLayout.GetData(), rPhyDriveInfo.arrDriveLayout.GetSize(),&dwBytesReturned, NULL))break;else if (::GetLastError() != ERROR_INSUFFICIENT_BUFFER){rPhyDriveInfo.arrDriveLayout.RemoveAll();break;}cPartns += 4;}::CloseHandle(hFile);}}//-------x--------struct LOGDRIVEINFO{BOOL m_bInfoValid;CString m_sDrive;CString m_sVolumeName;DWORD m_dwVolumeSerialNumber;DWORD m_dwMaxNameLength;DWORD m_dwFileSystemFlags;CString m_sFileSystemName;UINT m_nDriveType;unsigned long m_nSectorsPerCluster;unsigned long m_nBytesPerSector;unsigned long m_nFreeClusters;unsigned long m_nClusters;LOGDRIVEINFO(){m_bInfoValid = FALSE;m_dwVolumeSerialNumber = 0;m_dwMaxNameLength = 0;m_dwFileSystemFlags = 0;m_nDriveType = 0;m_nSectorsPerCluster = 0;m_nBytesPerSector = 0;m_nFreeClusters = 0;m_nClusters = 0;}LOGDRIVEINFO(LOGDRIVEINFO& obj){m_bInfoValid = FALSE;m_dwVolumeSerialNumber = 0;m_dwMaxNameLength = 0;m_dwFileSystemFlags = 0;m_nDriveType = 0;m_nSectorsPerCluster = 0;m_nBytesPerSector = 0;m_nFreeClusters = 0;m_nClusters = 0;operator=(obj);}LOGDRIVEINFO& operator=(LOGDRIVEINFO& obj) { m_sDrive = obj.m_sDrive; return *this; }LOGDRIVEINFO& operator=(LPCTSTR lpszDrive) { m_sDrive = lpszDrive; return *this; }};CArray arrLogicalDrives;const int LOGDRIVEBUFSIZE = 1024;LPTSTR lpszzLogicalDrives = new TCHAR[LOGDRIVEBUFSIZE];::ZeroMemory(lpszzLogicalDrives, LOGDRIVEBUFSIZE * sizeof(TCHAR));::GetLogicalDriveStrings(LOGDRIVEBUFSIZE, lpszzLogicalDrives);for (LPTSTR lpsz = lpszzLogicalDrives; *lpsz != 0; lpsz += ::_tcslen(lpsz)+1){TCHAR szLogicalDrive[4] = { 0 };::_tcsnccpy(szLogicalDrive, lpsz, ::_tcslen(lpsz)-1);int nIndex = arrLogicalDrives.Add(szLogicalDrive);arrLogicalDrives[nIndex].m_bInfoValid = ::GetVolumeInformation(lpsz,arrLogicalDrives[nIndex].m_sVolumeName.GetBuffer(_MAX_PATH), _MAX_PATH,&arrLogicalDrives[nIndex].m_dwVolumeSerialNumber,&arrLogicalDrives[nIndex].m_dwMaxNameLength,&arrLogicalDrives[nIndex].m_dwFileSystemFlags,arrLogicalDrives[nIndex].m_sFileSystemName.GetBuffer(_MAX_PATH), _MAX_PATH);arrLogicalDrives[nIndex].m_sVolumeName.ReleaseBuffer();arrLogicalDrives[nIndex].m_sFileSystemName.ReleaseBuffer();arrLogicalDrives[nIndex].m_nDriveType = ::GetDriveType(lpsz);if (arrLogicalDrives[nIndex].m_nDriveType == DRIVE_FIXED||arrLogicalDrives[nIndex].m_nDriveType== DRIVE_CDROM || arrLogicalDrives[nIndex].m_nDriveType == DRIVE_RAMDISK){::GetDiskFreeSpace(lpsz, &arrLogicalDrives[nIndex].m_nSectorsPerCluster,&arrLogicalDrives[nIndex].m_nBytesPerSector,&arrLogicalDrives[nIndex].m_nFreeClusters, &arrLogicalDrives[nIndex].m_nClusters);}}delete[] lpszzLogicalDrives;lpszzLogicalDrives = NULL;