lsbdlg.cpp

基于LSB的信息隐藏技术——MFC——编译已经通过运行正常

// LSBDlg.cpp : implementation file
//

#include "stdafx.h"
#include "LSB.h"
#include "LSBDlg.h"
#include <afxdlgs.h>

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLSBDlg dialog

CLSBDlg::CLSBDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CLSBDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CLSBDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

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

BEGIN_MESSAGE_MAP(CLSBDlg, CDialog)
	//{{AFX_MSG_MAP(CLSBDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//ON_BN_CLICKED(IDC_BUTTON1, OnLSBCoder)
	ON_BN_CLICKED(IDC_LSBDecoder, OnLSBDecoder)
	ON_BN_CLICKED(IDC_LSBCoder, OnLSBCoder)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLSBDlg message handlers

BOOL CLSBDlg::OnInitDialog()//对话框的初始化函数
{
	CDialog::OnInitDialog();//执行父类默认的初始化对话框操作

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.必须在系统命令范围内
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);
	//将\"关于…\"菜单项添加到系统菜单中
	CMenu* pSysMenu = GetSystemMenu(FALSE);//取此对话框系统菜单的CMenu对象指针赋给pSysMenu
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 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设置大图标
	SetIcon(m_hIcon, FALSE);		// Set small icon设置小图标
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CLSBDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 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 CLSBDlg::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 CLSBDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CLSBDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	this->EndDialog(IDCANCEL);
	CDialog::OnCancel();
	DestroyWindow();
}

/*void CLSBDlg::OnDestroy() 
{
	CDialog::OnDestroy();
	AfxMessageBox("谢谢您的使用！");
	delete this;
}*/


void CLSBDlg::OnLSBCoder() 
{
	// TODO: Add your control notification handler code here

	/*选择原始图像*/
	const char pszFilter_bmp[] = _T("EXE File (*.bmp)|*.bmp|All Files (*.*)|*.*||");
	CFileDialog Encrypt_Bitmap(TRUE, NULL, NULL, OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT,
	pszFilter_bmp, this);//打开文件

	if(IDOK==Encrypt_Bitmap.DoModal())//确定操作后获得文件路径
	{
		CString strFilePath = Encrypt_Bitmap.GetFileName();
		dib.LoadFile(strFilePath);//调用LoadFile函数加载图像文件
	}

	/*选择要嵌入的文本信息*/
	const char pszFilter_txt[] = _T("EXE File (*.txt)|*.txt|All Files (*.*)|*.*||");
	CFileDialog Embeded_txt(TRUE, NULL, NULL, OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT,
	pszFilter_txt, this);
	if(IDOK==Embeded_txt.DoModal())
	{
		CString strtxtPath = Embeded_txt.GetFileName();
		if(dib.LSBCoder(strtxtPath)==-1)
		{
			MessageBox("文件长度过长！",NULL,MB_ICONSTOP);
		}
		else
		{
			MessageBox("信息隐藏完毕！");
		}
	}
	
	/*保存嵌入信息后的图像*/
	CFileDialog Embeded_Bitmap(FALSE, NULL, NULL, OFN_OVERWRITEPROMPT,
	pszFilter_bmp, this);
	if(IDOK==Embeded_Bitmap.DoModal())
	{
		CString strsavePath = Embeded_Bitmap.GetFileName();
		dib.SaveFile(strsavePath);
	}
}

void CLSBDlg::OnLSBDecoder() 
{
	// TODO: Add your control notification handler code here
	
	/*提取图像中的文本信息*/
	const char pszFilter_txt[] = _T("EXE File (*.txt)|*.txt|All Files (*.*)|*.*||");
	CFileDialog Decrypt_txt(FALSE, NULL, NULL, OFN_OVERWRITEPROMPT,
	pszFilter_txt, this);
	if(IDOK==Decrypt_txt.DoModal())
	{
		CString strsavePath = Decrypt_txt.GetFileName();
		dib.LSBDecoder(strsavePath);
	}
}