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Annotation of mstools/mfc/samples/fileview/fileview.h, revision 1.1.1.1

1.1       root        1: // fileview.h : Declares the class interfaces for the application.
                      2: //          Fileview is a program which can display the contents of
                      3: //          a text-only file regardless of its size.
                      4: //
                      5: // This is a part of the Microsoft Foundation Classes C++ library.
                      6: // Copyright (C) 1992 Microsoft Corporation
                      7: // All rights reserved.
                      8: //
                      9: // This source code is only intended as a supplement to the
                     10: // Microsoft Foundation Classes Reference and Microsoft
                     11: // QuickHelp documentation provided with the library.
                     12: // See these sources for detailed information regarding the
                     13: // Microsoft Foundation Classes product.
                     14: 
                     15: #ifndef __FILEVIEW_H__
                     16: #define __FILEVIEW_H__
                     17: 
                     18: #include <afxwin.h>
                     19: #include "resource.h"
                     20: 
                     21: /////////////////////////////////////////////////////////////////////////////
                     22: // Derived class to handle large line files
                     23: class CLineFile : public CStdioFile
                     24: {
                     25:        DECLARE_DYNAMIC(CLineFile)
                     26: public:
                     27: // Constructors
                     28:                                        CLineFile();
                     29:                                        CLineFile(const char* pszFileName, UINT nOpenFlags);
                     30: 
                     31: // Overridables
                     32: 
                     33:        virtual LONG    NextLine(char FAR* lpsz, UINT nMax);
                     34:        virtual LONG    BackLines(char FAR* lpsz, UINT nMax, UINT nLines);
                     35:        virtual LONG    LineNear(char FAR* lpsz, UINT nMax, LONG  lOffset);
                     36:        virtual LONG    SetBegin(LONG lnewBegin);
                     37:                        LONG    GetBegin() { return m_lBeginLine; };
                     38: 
                     39: 
                     40: // Implementation
                     41:        virtual         ~CLineFile();
                     42: 
                     43: private:
                     44:        LONG    m_lBeginLine;   // 0 for beginning of file
                     45:                                                        // -1 for don't know
                     46:                                                        // offset of beginning of a line
                     47: };
                     48: 
                     49: 
                     50: // CMainWindow:
                     51: // See fileview.cpp for the code to the member functions and the
                     52: // message map.
                     53: //
                     54: 
                     55: class CMainWindow : public CFrameWnd
                     56: {
                     57: public:
                     58:        CMainWindow();
                     59:        ~CMainWindow();
                     60: 
                     61:        afx_msg int  OnCreate(LPCREATESTRUCT lpcs);
                     62:        afx_msg void OnPaint();
                     63:        afx_msg void OnAbout();
                     64:        afx_msg void OnOpen();
                     65:        afx_msg void OnExit();
                     66:        afx_msg void OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
                     67:        afx_msg void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
                     68:        afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags);
                     69: 
                     70:        DECLARE_MESSAGE_MAP()
                     71: 
                     72: private:
                     73:        CLineFile*  m_pMyFile;
                     74:        short       m_nVScrollPos;
                     75:        short       m_nHScrollPos;
                     76: 
                     77: 
                     78:        LONG        m_lTopLine;
                     79:        LONG        m_lFileSize;
                     80: 
                     81:        UINT        m_nCxChar;
                     82:        UINT        m_nCyChar;
                     83:        UINT        m_nLinesPainted;
                     84: 
                     85: protected:
                     86:        BOOL    FileDlg(BOOL bOpen, int nMaxFile, LPSTR szFile,
                     87:                                        int nMaxFileTitle, LPSTR szFileTitle);
                     88: 
                     89: };
                     90: 
                     91: /////////////////////////////////////////////////////////////////////////////
                     92: 
                     93: // CTheApp:
                     94: // See fileview.cpp for the code to the InitInstance member function.
                     95: //
                     96: 
                     97: class CTheApp : public CWinApp
                     98: {
                     99: public:
                    100:        BOOL InitInstance();
                    101: };
                    102: 
                    103: /////////////////////////////////////////////////////////////////////////////
                    104: 
                    105: #define SCROLLMAX 1000
                    106: 
                    107: #endif // __FILEVIEW_H__

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