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