mymd5dlg.cpp

MD5程序

// MyMD5Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "MyMD5.h"
#include "MyMD5Dlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMyMD5Dlg dialog

CMyMD5Dlg::CMyMD5Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CMyMD5Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMyMD5Dlg)
	m_Efile = _T("");
	m_Re1 = _T("");
	m_Re2 = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMyMD5Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMyMD5Dlg)
	DDX_Text(pDX, IDC_EFile, m_Efile);
	DDX_Text(pDX, IDC_ERe1, m_Re1);
	DDX_Text(pDX, IDC_ERe2, m_Re2);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMyMD5Dlg, CDialog)
	//{{AFX_MSG_MAP(CMyMD5Dlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SelectFile, OnSelectFile)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyMD5Dlg message handlers

BOOL CMyMD5Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();
    Num=0;
	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CMyMD5Dlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMyMD5Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMyMD5Dlg::OnSelectFile() 
{
char szFilter[] = "选择文件(*.*)|*.*||";
CFileDialog file(TRUE,NULL,NULL,NULL,szFilter,this);
file.DoModal();	
CString fileName;
fileName=file.GetPathName();
m_Efile=fileName;
if(Num==0){
m_Re1="";
m_Re2="";
}
UpdateData(FALSE);
CFile fp;
if(!fp.Open(fileName,CFile::modeRead)){
	AfxMessageBox("不可对其读");	
	return;}
DWORD len=fp.GetLength();
BYTE *ptr=new BYTE[len];
if(!ptr){
  AfxMessageBox("内存不够!");
  fp.Close();
  return;
}
DWORD l1=fp.ReadHuge(ptr,len);
fp.Close();	

unsigned char digest[16];
char out[80];
DWORD state[4];
myMd5.MessageDigest(ptr,len,digest);
memcpy(state,digest,16);
sprintf(out,"a=0x%x,b=0x%x,c=0x%x,d=0x%x",state[0],state[1],state[2],state[3]);
if(Num==0){ 
	m_Re1=out; 
	Num++;  }
else 
{ m_Re2=out;  
Num=0;     }
UpdateData(FALSE);
delete []ptr;
}

void CMyMD5Dlg::HexToChar(char *in, int len, char *out)
{
	char x=0;
	for(int i=0;i<len;i++){
		x=(char)(in[i]&0x0f);
		if(x>9)x=(char)('A'+x-10);
		else x='0'+x;
        out[2*i]=x;
		x=in[i]&0xf0;
		x=x>>4;
		if(x>9)x='A'+x-10;
		else x='0'+x;
        out[2*i+1]=x;
	}
}