helpdlg.cpp

阮秋琦的数字图像处理学一书所附的代码

// HelpDlg.cpp : implementation file
//

#include "stdafx.h"
#include "dipdemo.h"
#include "HelpDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CHelpDlg dialog


CHelpDlg::CHelpDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CHelpDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CHelpDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void CHelpDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CHelpDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CHelpDlg, CDialog)
	//{{AFX_MSG_MAP(CHelpDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CHelpDlg message handlers

BOOL CHelpDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	CString path=AfxGetApp()->m_pszHelpFilePath;
	path=path.Left(path.ReverseFind('\\')+1);
	CFile file;
	int len;
	char buf[30000];
	if (file.Open(path+"Readme.txt",CFile::modeRead))
	{
		len=file.Read(buf,30000);
		file.Close();
		buf[len]=0;
		SetDlgItemText(IDC_HELPTEXT,buf);
	}

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}