用Visual C 设计屏幕抓图程序

　　//}}AFX_VIRTUAL
　　// Implementation
　protected:
　　HICON m_hIcon;
　　// Generated message map functions
　　//{{AFX_MSG(CCaptureDlg)
　　virtual BOOL OnInitDialog();
　　afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
　　afx_msg void OnPaint();
　　afx_msg HCURSOR OnQueryDragIcon();
　　virtual void OnCancel();
　　afx_msg void OnAbout();
　　afx_msg void OnBrowse();
　　afx_msg void OnChange();
　　//}}AFX_MSG
　　DECLARE_MESSAGE_MAP()
};
#endif

////////////////////// CaptureDlg.cpp : implementation file
#include "stdafx.h"
#include "Capture.h"
#include "CaptureDlg.h"
#include <windowsx.h>
#pragma comment(lib,"hook.lib")
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
#define IDM_SHELL WM_USER 1
BOOL __declspec(dllexport)__stdcall AddHotkey(HWND,UCHAR key,UCHAR mask);
BOOL __declspec(dllexport)__stdcall DeleteHotkey(HWND,UCHAR key,UCHAR mask);
UCHAR Key_Table[]={0x78,0x79,0x7a,0x7b,0x6a,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39};
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()

CCaptureDlg::CCaptureDlg(CWnd* pParent /*=NULL*/)
: CDialog(CCaptureDlg::IDD, pParent)
{
　//{{AFX_DATA_INIT(CCaptureDlg)
　m_bControl = FALSE;
　m_bAlt = FALSE;
　m_bShift = FALSE;
　m_Path = _T("c:");
　m_Number = _T("0 picture captured.");
　nCount=0;
　bRegistered=FALSE;
　bTray=FALSE;
　//}}AFX_DATA_INIT
　// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
　m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CCaptureDlg::DoDataExchange(CDataExchange* pDX)
{
　CDialog::DoDataExchange(pDX);
　//{{AFX_DATA_MAP(CCaptureDlg)
　DDX_Control(pDX, IDC_KEY, m_Key);
　DDX_Check(pDX, IDC_CONTROL, m_bControl);
　DDX_Check(pDX, IDC_ALT, m_bAlt);
　DDX_Check(pDX, IDC_SHIFT, m_bShift);
　DDX_Text(pDX, IDC_PATH, m_Path);
　DDX_Text(pDX, IDC_NUMBER, m_Number);
　//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CCaptureDlg, CDialog)
　//{{AFX_MSG_MAP(CCaptureDlg)
　ON_WM_SYSCOMMAND()
　ON_WM_PAINT()
　ON_WM_QUERYDRAGICON()
　ON_BN_CLICKED(ID_ABOUT, OnAbout)
　ON_BN_CLICKED(IDC_BROWSE, OnBrowse)
　ON_BN_CLICKED(ID_CHANGE, OnChange)
　//}}AFX_MSG_MAP
END_MESSAGE_MAP()

BOOL CCaptureDlg::OnInitDialog()
{
　CDialog::OnInitDialog();
　ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
　ASSERT(IDM_ABOUTBOX < 0xF000);
　CMenu* pSysMenu = GetSystemMenu(FALSE);
　if (pSysMenu != NULL)
　{
　　CString strAboutMenu;
　　strAboutMenu.LoadString(IDS_ABOUTBOX);
　　if (!strAboutMenu.IsEmpty())
　　{
　　　pSysMenu->AppendMenu(MF_SEPARATOR);
　　　pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
　　}
　}
　SetIcon(m_hIcon, TRUE); // Set big icon
　SetIcon(m_hIcon, FALSE); // Set small icon
　m_Key.SetCurSel(0);
　RegisterHotkey();
　CMenu* pMenu=GetSystemMenu(FALSE);
　pMenu->DeleteMenu(SC_MAXIMIZE,MF_BYCOMMAND);
　pMenu->DeleteMenu(SC_SIZE,MF_BYCOMMAND);
　pMenu->DeleteMenu(SC_RESTORE,MF_BYCOMMAND);
　return TRUE; // return TRUE unless you set the focus to a control
}

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

void CCaptureDlg::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();
　}
}

HCURSOR CCaptureDlg::OnQueryDragIcon()
{
　return (HCURSOR) m_hIcon;

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