73 lines
2 KiB
C++
73 lines
2 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1998.
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//
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// File: driveinf.hxx
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//
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// Contents: Retrieves information about a specific volume.
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//
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// Classes: CDriveInfo
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//
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// History: 17-Nov-98 KLam Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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#include <winioctl.h>
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//+---------------------------------------------------------------------------
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//
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// Class: CDriveInfo
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//
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// Purpose: An object that provides volume specific information.
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//
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// History: 17-Nov-98 KLam Created
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//
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// Notes: Caches some information about the volume after first call to methods.
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//
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//----------------------------------------------------------------------------
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class CDriveInfo
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{
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public:
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CDriveInfo ( WCHAR const * wcsPath, ULONG cMegToLeaveOnDisk );
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enum eFileSystem { VOLINFO_UNKNOWN, VOLINFO_NTFS, VOLINFO_FAT, VOLINFO_OTHER };
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BOOL IsSameDrive ( WCHAR const * wcsPath );
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BOOL IsWriteProtected ();
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WCHAR const * GetDrive () const { return _wcsDrive; }
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ULONG GetSectorSize ();
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void GetDiskSpace ( __int64 & cbTotal, __int64 & cbRemaining );
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ULONG GetDriveType ( BOOL fRefresh = FALSE );
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WCHAR const * GetVolumeName ( BOOL fRefresh = FALSE );
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eFileSystem GetFileSystem ( BOOL fRefresh = FALSE );
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static void GetDrive ( WCHAR const * wcsPath, WCHAR *wcsDrive );
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static BOOL ContainsDrive ( WCHAR const * wcsPath );
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private:
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__int64 _cbDiskSpaceToLeave; // bytes not to use
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ULONG _cbSectorSize; // bytes in a sector
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WCHAR _wcsDrive[_MAX_DRIVE ]; // Form is <drive letter>:
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WCHAR _wcsRoot[_MAX_DRIVE + 1]; // Root of the drive
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BOOL _fWriteProtected;
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BOOL _fCheckedProtection; // _fWriteProtected Cached?
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eFileSystem _efsType;
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ULONG _ulDriveType;
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WCHAR _awcVolumeName[MAX_VOLUME_ID_SIZE+1];
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};
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