Counting Lines in a MS VC++ 6.0 project

// THIS FILE IS PROVIDED FOR INFORMATIONAL PURPOSE ONLY.
// NO COMERCIAL USE!!!
// Information: decl_spec@yahoo.com

#include "stdafx.h"
#include "LineCounter.h"
#include "ViewCodeDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CViewCodeDlg dialog


CViewCodeDlg::CViewCodeDlg() : m_filename(NULL),
	CDialog(CViewCodeDlg::IDD)
{
	//{{AFX_DATA_INIT(CViewCodeDlg)
	//}}AFX_DATA_INIT

}

CViewCodeDlg::~CViewCodeDlg()
{
	delete [] m_filename;
}

BEGIN_MESSAGE_MAP(CViewCodeDlg, CDialog)
	//{{AFX_MSG_MAP(CViewCodeDlg)
	ON_WM_SIZE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CViewCodeDlg message handlers

// Hei, I was thinking making this dialog to support syntax coloring,
// but... who needs that, when MS VC++ is doing that very well :)
BOOL CViewCodeDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();

	// Removing Restore && Minimize && Maximize menu items
	// IMPORTANT:	After we remove Restore, Minimize item position is 2
	//				After we remove Minimize, Maximize item position is 2
	HMENU sys_menu = ::GetSystemMenu(GetSafeHwnd(), FALSE);
	RemoveMenu(sys_menu, 0, MF_BYPOSITION);
	RemoveMenu(sys_menu, 2, MF_BYPOSITION);
	RemoveMenu(sys_menu, 2, MF_BYPOSITION);

	CHARFORMAT format;
	format.cbSize = sizeof(CHARFORMAT);
	format.dwMask = CFM_CHARSET | CFM_FACE | CFM_SIZE;
	format.bCharSet = DEFAULT_CHARSET;
	format.bPitchAndFamily = FIXED_PITCH | FF_DONTCARE;
	format.yHeight = 175;
	char facename[32] = "Courier New";
	strcpy(format.szFaceName, facename);

	int result = m_CodeWindow.SetDefaultCharFormat(format);

	if (!m_filename)
	{
		m_CodeWindow.ReplaceSel("No Source File");
		SetWindowText("No Source File");
		return TRUE;
	}
	
	SetWindowText(m_filename);
	FILE *input = fopen(m_filename, "rb");
	if (!input)
	{
		m_CodeWindow.ReplaceSel("Could not open file: ");
		m_CodeWindow.ReplaceSel(m_filename);
		SetWindowText("Error");
	}
	else
	{
		fseek(input, 0, SEEK_END);
		int input_size = ftell(input);
		fseek(input, 0, SEEK_SET);
		char *input_buf = new char[input_size+1];
		fread(input_buf, 1, input_size, input);
		fclose(input);
		input_buf[input_size] = 0;
		SetCursor(LoadCursor(NULL, IDC_WAIT));
		m_CodeWindow.ReplaceSel(input_buf);
		delete [] input_buf;
		m_CodeWindow.PostMessage(WM_KEYDOWN, VK_HOME, NULL);
		SetCursor(LoadCursor(NULL, IDC_ARROW));
	}
	
	return TRUE;
}

void CViewCodeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CViewCodeDlg)
	DDX_Control(pDX, ID_CODEVIEW, m_CodeWindow);
	//}}AFX_DATA_MAP
}

void CViewCodeDlg::SetFileName(const char *filename)
{
	delete [] m_filename;
	m_filename = new char[strlen(filename) + 1];
	strcpy(m_filename, filename);
}

void CViewCodeDlg::OnOK()
{
}

void CViewCodeDlg::OnSize(UINT nType, int cx, int cy) 
{
	if (m_CodeWindow)
		m_CodeWindow.SetWindowPos(NULL, 0, 0, cx-20, cy-20, SWP_NOMOVE);
	CDialog::OnSize(nType, cx, cy);
}