商业编程-源码-扩展COleDropTarget类来支持任意窗口拖放.zip

// DemoDlg.cpp : implementation file // #include "stdafx.h" #include "DropExDemo.h" #include "DemoDlg.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 void OnButton1(); //}}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) ON_BN_CLICKED(IDC_BUTTON1, OnButton1) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CDropExDemoDlg dialog CDropExDemoDlg::CDropExDemoDlg(CWnd* pParent /*=NULL*/) : CDialog(CDropExDemoDlg::IDD, pParent) { //{{AFX_DATA_INIT(CDropExDemoDlg) // 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 CDropExDemoDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CDropExDemoDlg) DDX_Control(pDX, IDC_LIST1, m_DropListBox); DDX_Control(pDX, IDC_BUTTON1, m_DropButton); DDX_Control(pDX, IDC_DROP_EDIT, m_dropEdit); DDX_Control(pDX, IDC_DROP_EDIT2, m_dropEdit2); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CDropExDemoDlg, CDialog) //{{AFX_MSG_MAP(CDropExDemoDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CDropExDemoDlg message handlers BOOL CDropExDemoDlg::OnInitDialog() { CDialog::OnInitDialog(); // Add "About..." menu item to system menu. // IDM_ABOUTBOX must be in the system command range. 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); } } // 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 if( !m_dropEdit2.Register() ) TRACE("register drop edit faile"); if( !m_dropEdit.Register() ) TRACE("register drop edit faile"); if( !m_DropListBox.Register() ) TRACE("register drop listbox faile"); if( !m_DropButton.Register() ) TRACE("register drop button faile"); char *s = "拖动文本到这里"; m_dropEdit.SetWindowText( s ); m_dropEdit2.SetWindowText( s ); m_DropButton.SetWindowText( s ); m_DropListBox.AddString( s ); return TRUE; // return TRUE unless you set the focus to a control } void CDropExDemoDlg::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 CDropExDemoDlg::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 CDropExDemoDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CAboutDlg::OnButton1() { ShellExecute(NULL, _T("open"), "mailto:ShyWJB@263.net?subject=王加宝你好", NULL,NULL, SW_SHOW ); }