隐藏基于对话框程序

 

定义托盘响应消息:

#define WM_SYSTRAY WM_USER + 120

 

在头文件中定义变量:

WINDOWPLACEMENT m_wp;   // 以便在恢复时使用

NOTIFYICONDATA m_tmid;     // 托盘结构

CRect       m_rectWnd;       // 保存窗口区域

 

在初始化函数中加入：

              GetWindowRect(&m_rectWnd); // 恢复时使用

              GetWindowPlacement(&m_wp); //恢复时用

              ModifyStyleEx (WS_EX_APPWINDOW, WS_EX_TOOLWINDOW); // 不在工具栏显示

                           

              WINDOWPLACEMENT wp;

             

              wp.length = sizeof(WINDOWPLACEMENT);

              wp.flags = WPF_RESTORETOMAXIMIZED;

              wp.showCmd = SW_HIDE;

              SetWindowPlacement(&wp);

             

              m_tmid.cbSize = sizeof (NOTIFYICONDATA);

              m_tmid.hWnd = this->m_hWnd;

              m_tmid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;

              m_tmid.uCallbackMessage = WM_SYSTRAY;

              m_tmid.uID = IDR_MAINFRAME;

             

              CString sz = _T("");

              strcpy(m_tmid.szTip, "");

              HICON hIcon;

              hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

              m_tmid.hIcon = hIcon;

              PNOTIFYICONDATA m_ptnid = &m_tmid;

              ::Shell_NotifyIcon(NIM_ADD, m_ptnid);

              if (hIcon)

                     ::DestroyIcon(hIcon);

 

增加窗口消息函数 WM_DESTROY 增加如下

void CClientDlg::OnDestroy()

{

       CDialog::OnDestroy();

       ::Shell_NotifyIcon(NIM_DELETE ,&m_tmid);   

}

响应WindowProc消息

LRESULT CClientDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)

{

        switch (message)

          {

          case WM_SYSTRAY:

                 if (lParam == WM_LBUTTONDBLCLK)

                 {

                        // 恢复窗口

                        ModifyStyleEx(WS_EX_TOOLWINDOW, WS_EX_APPWINDOW);

                        SetWindowPlacement(&m_wp);

                        MoveWindow(m_rectWnd, TRUE);

                        CenterWindow();

                 }

                 break;

          case WM_SYSCOMMAND:

                 if (wParam == SC_MINIMIZE)

                 {

                        AfxGetMainWnd()->ShowWindow (SW_HIDE);

                        return 0;

                 }

 

                 if (wParam == SC_CLOSE)

                 {

                        OnCancel();

                        return 0;

                 }

                 break;

          }

      

       return CDialog::WindowProc(message, wParam, lParam);

}