托盘图标的实现

1.添加消息处理函数

 

BEGIN_MESSAGE_MAP(CPcmserverDlg, CDialog)
    //{{AFX_MSG_MAP(CPcmserverDlg)
        ...
    ON_MESSAGE(WM_SYSTEMTRAY, OnSystemTray)
    ...
        //}}AFX_MSG_MAP
END_MESSAGE_MAP()


LRESULT C***Dlg::OnSystemTray(WPARAM wParam, LPARAM lParam)
{
    switch( lParam )
    {
    case WM_LBUTTONDOWN:
        {
            this->ShowWindow(SW_NORMAL);
            DeleteTray();//销毁Tray
        }
        break;
    case WM_RBUTTONDOWN:
                {
                        //右键弹出托盘的菜单
                 CMenu menu;
                 menu.LoadMenu(IDR_TRAYMENU);
                 POINT pt;
                 ::GetCursorPos(&pt);
                 menu.GetSubMenu(0)->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTALIGN, pt.x, pt.y, AfxGetMainWnd());
        }
                break;
    }

    return 1;
}
 
void C***Dlg::DeleteTray()
{
 　　NOTIFYICONDATA nid;
 　　nid.cbSize = sizeof( NOTIFYICONDATA );
 　　nid.hWnd = m_hWnd;
 　　nid.uID = IDR_MAINFRAME;
 　　nid.uFlags = 0;
 　　::Shell_NotifyIcon( NIM_DELETE,&nid );
}

 

 

2.要添加Tray 可以用以下的函数

 

void C***Dlg::AddTray()
{
    NOTIFYICONDATA nid;
    nid.cbSize = sizeof( NOTIFYICONDATA );
    nid.hWnd = m_hWnd; // handle of window that will receive
    // messages from icon
    nid.uID = IDR_MAINFRAME; // id for this icon
    nid.uFlags = NIF_MESSAGE|NIF_ICON|NIF_TIP;// the next three parameters are valid
    nid.uCallbackMessage = WM_SYSTEMTRAY;// message that icon sends when clicked
    nid.hIcon = AfxGetApp()->LoadIcon( IDR_MAINFRAME );// icon

    _tcscpy(nid.szTip, _T("tip name"));
    
    // bubble help message for icon
    ::Shell_NotifyIcon( NIM_ADD,&nid );
}

 

 

3.我们可以在点击系统菜单消息的时候把窗口隐藏在托盘中

 

void C***Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
    if ((nID & 0xFFF0) == IDM_ABOUTBOX)
    {
        CAboutDlg dlgAbout;
        dlgAbout.DoModal();
    }
    else if(nID == SC_MINIMIZE)     
         {//比如在最小化窗口的时候隐藏任务栏图标，显示托盘图标

                this->ShowWindow(SW_HIDE);

        AddTray();
        }
    else
    {
        CDialog::OnSysCommand(nID, lParam);
    }
}