MFC下托盘图标的实现和托盘菜单

对话框头文件XXXDlg.h:

1.添加成员变量NOTIFYICONDATA m_nid;

2.添加tray消息响应函数的声明

afx_msg LRESULT OnTrayNotify(WPARAM wParam, LPARAM lParam);

对话框实现文件XXXDlg.cpp:

1.定义tray消息 #define UM_TRAYNOTIFY WM_USER + 11

2.CXXXDlg的构造函数添加

memset(&m_nid, 0, sizeof(m_nid)); // Initialize NOTIFYICONDATA struct m_nid.cbSize = sizeof(m_nid); m_nid.uFlags = NIF_ICON | NIF_TIP | NIF_MESSAGE;

3.CXXXDlg的析构函数添加

m_nid.hIcon = NULL; Shell_NotifyIcon(NIM_DELETE, &m_nid);

4.添加消息映射：

BEGIN_MESSAGE_MAP(CMFC2Dlg, CDialog) //... ON_MESSAGE(UM_TRAYNOTIFY, &CMFC2Dlg::OnTrayNotify) //... END_MESSAGE_MAP()

5.OnInitDialog函数添加：

m_nid.hWnd = GetSafeHwnd(); m_nid.uCallbackMessage = UM_TRAYNOTIFY;

// Set tray icon and tooltip m_nid.hIcon = m_hIcon;

// Set tray notification tip information CString strToolTip = _T("托盘程序"); _tcsncpy_s(m_nid.szTip, strToolTip, strToolTip.GetLength()); Shell_NotifyIcon(NIM_ADD, &m_nid);

6.OnTrayNotify函数的实现： LRESULT CXXXDlg::OnTrayNotify(WPARAM wParam, LPARAM lParam) { UINT uMsg = (UINT)lParam;

switch(uMsg) { case WM_RBUTTONUP: { //右键处理 CMenu menuTray; CPoint point; int id; GetCursorPos(&point); menuTray.LoadMenu(IDR_MENU_TRAY); id = menuTray.GetSubMenu(0)->TrackPopupMenu(TPM_RETURNCMD | TPM_LEFTALIGN|TPM_RIGHTBUTTON, point.x, point.y, this); #if 0 CString strInfo; strInfo.Format(L"menuid %d", id); LPCTSTR strtmp; strtmp = strInfo.GetBuffer(0); MessageBox(strtmp, L"test"); #endif switch(id){ case IDR_TRAY_EXIT: OnOK(); break; case IDR_TRAY_RESTORE:

//窗口前端显示 SetForegroundWindow(); ShowWindow(SW_SHOWNORMAL); break; default: break; } break; } case WM_LBUTTONDBLCLK: SetForegroundWindow(); ShowWindow(SW_SHOWNORMAL); break; default: break; } return 0; }

7.添加WM_SIZE消息处理：

void CMFC2Dlg::OnSize(UINT nType, int cx, int cy) { CDialog::OnSize(nType, cx, cy);

if(nType == SIZE_MINIMIZED){ ShowWindow(SW_HIDE); } } 8.菜单。

添加菜单资源 , 比如IDR_MENU_TRAY.

定义一个子菜单Tray，有若干个菜单项，比如“恢复窗口”, ID是IDR_TRAY_RESTORE，“退出”, ID是IDR_TRAY_EXIT。

在OnTrayNotify函数中捕获右击消息，弹出菜单，参考第6步。

至此，添加托盘的功能基本完成。