MFC窗口实现最小化到托盘 右键菜单和还原

//.h文件
void toTray();//最小化到托盘
void DeleteTray();//删除托盘图标

afx_msg LRESULT OnShowTask(WPARAM wParam,LPARAM lParam) ;//图标恢复

//.cpp文件

#define WM_SHOWTASK (WM_USER +1)
#define IDR_SHOW 11
#define IDR_OTHER 12
#define IDR_EXIT 13

BEGIN_MESSAGE_MAP()
...
ON_MESSAGE(WM_SHOWTASK,OnShowTask)//消息映射
END_MESSAGE_MAP()

void ScheduleDlg::toTray()//最小化到托盘
{
    NOTIFYICONDATA nid;
    nid.cbSize=(DWORD)sizeof(NOTIFYICONDATA);
    nid.hWnd=this->m_hWnd;
    nid.uID=IDR_MAINFRAME;
    nid.uFlags=NIF_ICON|NIF_MESSAGE|NIF_TIP ;
    nid.uCallbackMessage=WM_SHOWTASK;//自定义的消息名称
    nid.hIcon=LoadIcon(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDR_MAINFRAME));
    strcpy(nid.szTip,"OA");//信息提示条为“OA”
    Shell_NotifyIcon(NIM_ADD,&nid);//在托盘区添加图标
    ShowWindow(SW_HIDE);//隐藏主窗口
}

LRESULT ScheduleDlg::OnShowTask(WPARAM wParam, LPARAM lParam)
{//wParam接收的是图标的ID，而lParam接收的是鼠标的行为
    if(wParam != IDR_MAINFRAME) return ;
    switch (lParam)
    {
    case WM_LBUTTONUP://左键单击显示主界面
        {
            this->ShowWindow(SW_SHOW);
            SetForegroundWindow();
            DeleteTray();
        }break;
    case WM_RBUTTONUP://右击弹出菜单
        {
            LPPOINT lpoint = new tagPOINT;
            ::GetCursorPos(lpoint);//得到鼠标位置
            CMenu menu;
            menu.CreatePopupMenu();
            menu.AppendMenu(MFT_STRING, IDR_SHOW, "打开主界面");
            menu.AppendMenu(MFT_STRING, IDR_OTHER, "其他");
            menu.AppendMenu(MFT_STRING, IDR_EXIT, "退出");
            SetForegroundWindow();
            EnableMenuItem(menu,IDR_OTHER,MF_GRAYED);//"其他"菜单变灰
            //menu.TrackPopupMenu(TPM_LEFTALIGN, lpoint->x,lpoint->y,this);//显示菜单
            int xx=TrackPopupMenu(menu,TPM_RETURNCMD,lpoint->x,lpoint->y,NULL,this->m_hWnd,NULL);//显示菜单并获取选项ID
            if(xx==IDR_SHOW)
            {
                this->ShowWindow(SW_SHOW);
                SetForegroundWindow();
                DeleteTray();
            }
            else if(xx==IDR_OTHER) {MessageBox("你点击了“其他”菜单","提示",MB_OK);}
            else if(xx==IDR_EXIT) {OnBnClickedCancel();}
            HMENU hmenu = menu.Detach();
            menu.DestroyMenu();
            delete lpoint;
        }break;
    case WM_LBUTTONDBLCLK:
        {
            //双击不处理
        }break;
    }
    return ;
}

void ScheduleDlg::DeleteTray()//销毁托盘图标
{
    NOTIFYICONDATA nid;
    nid.cbSize = (DWORD)sizeof(NOTIFYICONDATA);
    nid.hWnd = this->m_hWnd;
    nid.uID = IDR_MAINFRAME;
    nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
    nid.uCallbackMessage = WM_SHOWTASK;
    nid.hIcon = LoadIcon(AfxGetInstanceHandle(),MAKEINTRESOURCE(IDR_MAINFRAME));
    strcpy(nid.szTip,"OA");
    Shell_NotifyIcon(NIM_DELETE, &nid);
}