关于OnNotify的

gongbird 2002-02-09 04:39:51

我在MainFrame的消息里看到这个OnNotify
结合最近在搞的一个托盘程序Shell_NotifyIcon，我想问问他们有什么关系吗？

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chehw 2002-02-09

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没什么关系

WM_NOTIFY消息流程实例分析---对应博客代码

在MFC中实现 EventSink 。 (1) 在MFC中，添加ATL简单对象 CFileMonitorSink (2) 添加继承父类 IDispEventImpl public IDispEventImpl (1) 0 唯一标识符，用于区别连接到事件源的多个客户端 CFileMonitorSink，当前类名 _IFun1Events, COM 中的事件源接口, 包含各种事件 __ATLEventLib, COM 中Lib类具体查 MSDN --IDispEventImpl (2) 添加映射项 BEGIN_SINK_MAP(CFileMonitorSink) SINK_ENTRY_EX( 0, __uuidof(_IFun1Events), 1, OnNotify) //0 唯一标识符，用于区别连接到事件源的多个客户端同上 , 1, 事件号，发生1号事件由OnNotify来处理 SINK_ENTRY_EX( 0, __uuidof(_IFun1Events), 2, OnNotify2) //发生2号事件由OnNotify2来处理 END_SINK_MAP() 并添加方法 STDMETHOD(OnNotify)(void); //事件处理类 STDMETHOD(OnNotify2)(CHAR* lszContent); (3) 连接到COM中的事件容器添加变量 CComPtr m_Object; //COM 中的事件源对象添加方法 STDMETHOD(Start)(IUnknown* pSinkThisObject, VARIANT_BOOL* succeeded) { AFX_MANAGE_STATE(AfxGetAppModuleState()); // TODO: 在此添加实现代码 if ( DispEventAdvise(pSinkThisObject) == S_OK ) { m_Object = pSinkThisObject; *succeeded = VARIANT_TRUE; } else { *succeeded = VARIANT_FALSE; } return S_OK; } STDMETHOD(Stop)(void) //解除连接 { AFX_MANAGE_STATE(AfxGetAppModuleState()); DispEventUnadvise(m_Object); return S_OK; } 在其他类中的使用方法： CComPtr m_FileMonitorSink; CComPtr m_FileMonitor; //COM中导出接口 CoInitialize(0); HRESULT lRt = m_FileMonitorSink.CoCreateInstance( __uuidof(FileMonitorSink) ); lRt = m_FileMonitor.CoCreateInstance(__uuidof(Fun1)); //创建COM接口实例 VARIANT_BOOL succeeded; lRt = m_FileMonitorSink->Start(m_FileMonitor, &succeeded); //把 m_FileMonitorSink 连接到COM中的事件容器上 m_FileMonitor->HelloWorld(); //调用COM接口，接口中触发事件s m_FileMonitorSink->stop(); //从COM接口中解除连接 CoUninitialize(); // ################# CFileMonitorSink 类代码 ################# class ATL_NO_VTABLE CFileMonitorSink : public CComObjectRootEx, public CComCoClass, public IDispatchImpl, public IDispEventImpl { public: CFileMonitorSink() { } DECLARE_REGISTRY_RESOURCEID(IDR_FILEMONITORSINK) BEGIN_COM_MAP(CFileMonitorSink) COM_INTERFACE_ENTRY(IFileMonitorSink) COM_INTERFACE_ENTRY(IDispatch) END_COM_MAP() BEGIN_SINK_MAP(CFileMonitorSink) SINK_ENTRY_EX( 0, __uuidof(_IFun1Events), 1, OnNotify) SINK_ENTRY_EX( 0, __uuidof(_IFun1Events), 2, OnNotify2) END_SINK_MAP() DECLARE_PROTECT_FINAL_CONSTRUCT() HRESULT FinalConstruct() { return S_OK; } void FinalRelease() { } CComPtr m_Object; //COM 事件源对象 public: STDMETHOD(OnNotify)(void); STDMETHOD(Stop)(void); STDMETHOD(Start)(IUnknown* pSinkThisObject, VARIANT_BOOL* succeeded); STDMETHOD(OnNotify2)(CHAR* lszContent); };

源码包含蓝牙类使用,扫描,连接,与设备数据交互过程

浅谈观察者模式及在C#中的实现浅谈观察者模式及在C#中的实现

Follow these 10 easy steps to build the OutLookRichEdit control: Insert a rich edit control into the dialog. Call AfxInitRichEdit() in the InitInstance of the App class or in InitDialog. If it does not exist, copy OutLookRichEdit.cpp and OutLookRichEdit.h to the project directory. Click the menu choice Project-Add to Project-Files and select the above-copied files to add the wrapper class to your project. Import the hand cursor into the resource and rename it "IDC_LINK". Use Classwizard to add a member variable of the rich edit control (CRichEditCtrl). Include the OutLookRichEdit.h file in the dialog's header file and change the declaration of rich edit member variable, as in CRichEditCtrl m_ctrlText1; to COutLookRichEdit m_ctrlText1; In InitDialog(), add the following code. Post a comment Email Article Print Article Share Articles Digg del.icio.us Newsvine Facebook Google LinkedIn MySpace Reddit Slashdot StumbleUpon Technorati Twitter Windows Live YahooBuzz FriendFeed m_ctrlText1.SetRawHyperText(_T("Click <%$here$#100#%> to see the about box.")); At this level, if you build the project and run it, you can see the rich edit control with linked text, but nothing would happen if you clicked on the link. To Show a dialog while the link is clicked, you have to add some more code in the dialog class. Before that, have a closer look at the preceding code and hypertext syntax. The link text is enclosed between the "$" symbols and the corresponding dialog's resource value 100 (About Box), enclosed in "#" symbols. You can find the #define values of dialogs in the resource.h file. Use ClassWizard to map OnNotify of the dialog and write the corresponding implementation code in .cpp file, like: BOOL CDEMODlg::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult) { NMHDR* pNmHdr = (NMHDR*) lParam; if(IDC_RICHEDIT1 == pNmHdr->idFrom){ switch(pNmHdr->code) { case IDD_ABOUTBOX: CAboutDlg oDlg; oDlg.DoModal (); break; } } return CDialog::OnNotify(wParam, lParam, pResult); } Now, build and run the project. It is recommended that you set the read-only attribute to the rich edit control.

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