利用MFC实现一个托盘功能

右键点击托盘，弹出如下的图标

1.将主窗口隐藏起来，并移除任务栏图标显示

在CMFCApplication2Dlg::OnInitDialog进行初始化

	int nFullWidth = GetSystemMetrics(SM_CXSCREEN);int nFullHeight = GetSystemMetrics(SM_CYSCREEN);SetWindowPos(NULL, nFullWidth, nFullHeight, 0, 0, SWP_NOZORDER);  //设置0像素,移到最角落  或者:MoveWindow(0,0,0,0);ShowWindow(SW_HIDE);ModifyStyleEx(WS_EX_APPWINDOW, WS_EX_TOOLWINDOW);  //移除任务栏图标显示

2. 制作系统托盘

在CMFCApplication2Dlg类中增加两个成员与一个函数

	NOTIFYICONDATA NotifyIcon;  //系统托盘类CMenu menu;afx_msg LRESULT OnSystemtray(WPARAM wParam, LPARAM lParam);

在BEGIN_MESSAGE_MAP(CMFCApplication2Dlg, CDialogEx) 与END_MESSAGE_MAP()之间添加自定义消息
#define WM_SYSTEMTRAY WM_USER+100

ON_MESSAGE(WM_SYSTEMTRAY, &CMFCApplication2Dlg::OnSystemtray)

OnSysCommand的实现

void CMFCApplication2Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{if ((nID & 0xFFF0) == IDM_ABOUTBOX){CAboutDlg dlgAbout;dlgAbout.DoModal();}else{CDialogEx::OnSysCommand(nID, lParam);}
}

在CMFCApplication2Dlg::OnInitDialog进行初始化

	//设置系统托盘NotifyIcon.cbSize = sizeof(NOTIFYICONDATA);//NotifyIcon.hIcon=AfxGetApp()->LoadIcon(IDR_MAINFRAME);NotifyIcon.hIcon = m_hIcon;  //上面那句也可以NotifyIcon.hWnd = m_hWnd;lstrcpy(NotifyIcon.szTip, _T("更改端口"));NotifyIcon.uCallbackMessage = WM_SYSTEMTRAY;NotifyIcon.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;Shell_NotifyIcon(NIM_ADD, &NotifyIcon);   //添加系统托盘//声明一个弹出式菜单menu.CreatePopupMenu();menu.AppendMenu(MF_STRING, WM_DESTROY, _T("退出"));menu.AppendMenu(MF_STRING, WM_SETPOWERBOOT, _T("开启开机自启动"));menu.AppendMenu(MF_STRING, WM_CANCELPOWERBOOT, _T("关闭开机自启动"));

3. 右键托盘得到信息

afx_msg LRESULT CMFCApplication2Dlg::OnSystemtray(WPARAM wParam, LPARAM lParam)
{switch (lParam){case  WM_RBUTTONDOWN://右键起来时弹出快捷菜单{//menu.LoadMenuW(IDR_MENU1);//加载菜单资源LPPOINT lpoint = new tagPOINT;::GetCursorPos(lpoint);//得到鼠标位置//确定弹出式菜单的位置menu.TrackPopupMenu(TPM_LEFTALIGN, lpoint->x, lpoint->y, this);break;}case  WM_LBUTTONDOWN://左键单击的处理     {//....}}return 0;
}

4. 选择信息栏触发事件

BOOL CMFCApplication2Dlg::OnCommand(WPARAM wParam, LPARAM lParam)
{// TODO: 在此添加专用代码和/或调用基类switch (LOWORD(wParam)){case WM_DESTROY:{OnDestroy();break;}case WM_SETPOWERBOOT:{OnSetPowerBoot(wParam, lParam);break;}case WM_CANCELPOWERBOOT:{OnCancelPowerBoot(wParam, lParam);break;}}return CDialogEx::OnCommand(wParam, lParam);
}

5. 添加开机自启动与关闭开机自启动OnSetPowerBoot与OnCancelPowerBoot

在BEGIN_MESSAGE_MAP(CMFCApplication2Dlg, CDialogEx) 与END_MESSAGE_MAP()之间添加自定义消息
#define WM_SETPOWERBOOT WM_USER+101
#define WM_CANCELPOWERBOOT WM_USER+102

	ON_MESSAGE(WM_SETPOWERBOOT, &CMFCApplication2Dlg::OnSetPowerBoot)ON_MESSAGE(WM_CANCELPOWERBOOT, &CMFCApplication2Dlg::OnCancelPowerBoot)

LRESULT CMFCApplication2Dlg::OnSetPowerBoot(WPARAM wParam, LPARAM lParam)
{HKEY hKey;//找到系统的启动项CString lpRun = _T("SOFTWARE\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Run");//打开启动项long lRet = RegOpenKeyEx(HKEY_CURRENT_USER, lpRun, 0, KEY_ALL_ACCESS, &hKey);//找到程序自身路径TCHAR pFileName[MAX_PATH] = {};GetModuleFileName(NULL, pFileName, MAX_PATH);//判断是否已经设置开机启动TCHAR PowerBoot[MAX_PATH] = {};DWORD nLongth = MAX_PATH;long result = RegGetValue(hKey, NULL, _T("PowerBoot"), RRF_RT_REG_SZ, 0, PowerBoot, &nLongth);if (result == ERROR_SUCCESS)        //自启状态{if (lRet == ERROR_SUCCESS){MessageBox(_T("已是自启状态"), _T("PanTum"));}}else        //未自启状态{//设置自启lRet = RegSetValueEx(hKey, _T("PowerBoot"), 0, REG_SZ, (LPBYTE)pFileName, (lstrlen(pFileName) + 1) * sizeof(TCHAR));if (lRet == ERROR_SUCCESS){MessageBox(_T("设置自启成功"), _T("PanTum"));}}//关闭注册表RegCloseKey(hKey);return 0;}LRESULT CMFCApplication2Dlg::OnCancelPowerBoot(WPARAM wParam, LPARAM lParam)
{HKEY hKey;//找到系统的启动项CString lpRun = _T("SOFTWARE\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Run");//打开启动项long lRet = RegOpenKeyEx(HKEY_CURRENT_USER, lpRun, 0, KEY_ALL_ACCESS, &hKey);//找到程序自身路径TCHAR pFileName[MAX_PATH] = {};GetModuleFileName(NULL, pFileName, MAX_PATH);//判断是否已经设置开机启动TCHAR PowerBoot[MAX_PATH] = {};DWORD nLongth = MAX_PATH;long result = RegGetValue(hKey, NULL, _T("PowerBoot"), RRF_RT_REG_SZ, 0, PowerBoot, &nLongth);if (result == ERROR_SUCCESS)        //自启状态{//取消自动启动lRet = RegDeleteValue(hKey, _T("PowerBoot"));if (lRet == ERROR_SUCCESS){MessageBox(_T("关闭自启成功"), _T("PanTum"));}}else        //未自启状态{//设置自启MessageBox(_T("已关闭自启状态"), _T("PanTum"));}//关闭注册表RegCloseKey(hKey);return 0;
}