MRU.h
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// Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
//
// This file is part of the VNC system.
//
// The VNC system is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
//
// If the source code for the VNC system is not available from the place
// whence you received this file, check http://www.uk.research.att.com/vnc or contact
// the authors on vnc@uk.research.att.com for information on obtaining it.
//
// MRU maintains a list of 'Most Recently Used' strings in the registry
//
#ifndef MRU_H__
#define MRU_H__
#pragma once
#include <windows.h>
#include <tchar.h>
class MRU
{
public:
// Create an MRU and initialise it from the key.
// Key created if not existant.
MRU(LPTSTR keyname, unsigned int maxnum = 8);
// Add the item specified at the front of the list
// Move it there if not already. If this makes the
// list longer than the maximum, older ones are deleted.
void AddItem(LPTSTR txt);
// How many items are on the list?
int NumItems();
// Return them in order. 0 is the newest.
// NumItems()-1 is the oldest.
int GetItem(int index, LPTSTR buf, int buflen);
// Remove the specified item if it exists.
void RemoveItem(LPTSTR txt);
// Remove the item with the given index.
// If this is greater than NumItems()-1 it will be ignored.
void RemoveItem(int index);
virtual ~MRU();
private:
void ReadIndex();
TCHAR m_index[28]; // allow a bit of workspace beyond maximum of 26
HKEY m_hRegKey;
unsigned int m_maxnum;
void Tidy();
protected:
void WriteIndex();
};
#endif