MFC中实现对话框最小化到托盘功能

来源：互联网发布：淘宝下载安装最新版本编辑：程序博客网时间：2024/04/27 02:40

头文件：

#define WM_SHOWTASK WM_USER+1

class XxxDlg : public CDialogEx
{
// Construction
public:
   XxxDlg(CWnd* pParent = NULL);   // standard constructor

// Dialog Data
   enum { IDD = IDD_MFCTESTAPPLICATION_DIALOG };

   protected:
   virtual void DoDataExchange(CDataExchange* pDX);   // DDX/DDV support

// Implementation
protected:
   HICON m_hIcon;

   // Generated message map functions
   virtual BOOL OnInitDialog();
   afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
   afx_msg void OnPaint();
   afx_msg HCURSOR OnQueryDragIcon();
   afx_msg LRESULT OnShowTask(WPARAM wParam,LPARAM lParam);
   DECLARE_MESSAGE_MAP()
public:
   NOTIFYICONDATA m_nid;
   afx_msg void OnSize(UINT nType, int cx, int cy);
   afx_msg void OnDestroy();
};

cpp文件：

CMFCTestApplicationDlg::CMFCTestApplicationDlg(CWnd* pParent /*=NULL*/)
: CDialogEx(CMFCTestApplicationDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDI_ICON1);
}

BEGIN_MESSAGE_MAP(CMFCTestApplicationDlg, CDialogEx)
   ON_WM_SYSCOMMAND()
   ON_WM_PAINT()
   ON_WM_QUERYDRAGICON()
   ON_MESSAGE(WM_SHOWTASK, OnShowTask)
   ON_WM_SIZE()
   ON_WM_DESTROY()
END_MESSAGE_MAP()

BOOL CMFCTestApplicationDlg::OnInitDialog()
{
   CDialogEx::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)
   {
       BOOL bNameValid;
       CString strAboutMenu;
       bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
       ASSERT(bNameValid);
       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
   CMenu* menu = this->GetSystemMenu(FALSE);
   menu->EnableMenuItem(SC_CLOSE, MF_BYCOMMAND | MF_GRAYED);

   m_nid.cbSize = (DWORD)sizeof(NOTIFYICONDATA);
    m_nid.hWnd    = this->m_hWnd;
    m_nid.uID     = IDR_MAINFRAME;
    m_nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP ;
    m_nid.uCallbackMessage = WM_SHOWTASK;             // 自定义的消息名称
    m_nid.hIcon   = LoadIcon(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDI_ICON1));
   wcscpy_s(m_nid.szTip, _T("自制播放器"));                // 信息提示条为"服务器程序"
    Shell_NotifyIcon(NIM_ADD, &m_nid);                // 在托盘区添加图标

   return TRUE; // return TRUE unless you set the focus to a control
}

void CMFCTestApplicationDlg::OnSize(UINT nType, int cx, int cy)
{
   CDialogEx::OnSize(nType, cx, cy);
   if(nType == SIZE_MINIMIZED)
   {
       ShowWindow(SW_HIDE); // 当最小化时，隐藏主窗口
   }
   // TODO: Add your message handler code here
}

void CMFCTestApplicationDlg::OnDestroy()
{
   CDialogEx::OnDestroy();

   // TODO: Add your message handler code here
   // 系统关闭时在托盘区删除图标
   Shell_NotifyIcon(NIM_DELETE, &m_nid);
}

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