SINK.H
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上传用户:bangxh
上传日期:2007-01-31
资源大小:42235k
文件大小:5k
源码类别:
Windows编程
开发平台:
Visual C++
- /*+==========================================================================
- File: SINK.H
- Summary: Include file for the COPaperSink COM object class.
- COPaperSink offers a main IUnknown interface and the custom
- IPaperSink interface (outgoing connection events from COPaper
- drawing paper objects). This multiple interface COM Object
- Class is achieved via the technique of nested classes. The
- implementation of the IPaperSink interface is nested inside
- of the COPaperSink Class.
- For a comprehensive tutorial code tour of this module's
- contents and offerings see the tutorial STOCLIEN.HTM
- file. For more specific technical details on the internal
- workings see the comments dispersed throughout the module's
- source code.
- Functions: .
- Classes: COPaperSink.
- Origin: 6-10-96: atrent - Editor-inheritance from BALL.H in the
- CONSERVE Tutorial Code Sample.
- ----------------------------------------------------------------------------
- This file is part of the Microsoft COM Tutorial Code Samples.
- Copyright (C) Microsoft Corporation, 1997. All rights reserved.
- This source code is intended only as a supplement to Microsoft
- Development Tools and/or on-line documentation. See these other
- materials for detailed information regarding Microsoft code samples.
- THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
- KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
- PARTICULAR PURPOSE.
- ==========================================================================+*/
- #if !defined(SINK_H)
- #define SINK_H
- #ifdef __cplusplus
- /*O+O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O+++O
- ObjectClass: COPaperSink
- Summary: The main Sink COM object class for COPaperSink COM objects.
- COM objects of this class offer the IPaperSink sink
- interface supporting various drawing paper events. The
- mulitple interfaces on this COM object are constructed via
- the nested interface classes technique.
- Interfaces: IUnknown
- Standard interface providing COM object features.
- IPaperSink
- Sink interface for Paper events.
- Aggregation: Yes, COPaperSink COM Objects are aggregatable by passing
- a non-NULL pUnkOuter IUnknown pointer into the constructor.
- O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O---O-O*/
- class COPaperSink : public IUnknown
- {
- public:
- // Main Object Constructor & Destructor.
- COPaperSink(IUnknown* pUnkOuter, CGuiPaper* pGuiPaper);
- ~COPaperSink(void);
- // IUnknown methods. Main object, non-delegating.
- STDMETHODIMP QueryInterface(REFIID, PPVOID);
- STDMETHODIMP_(ULONG) AddRef(void);
- STDMETHODIMP_(ULONG) Release(void);
- private:
- // We declare nested class interface implementations here.
- class CImpIPaperSink : public IPaperSink
- {
- public:
- // Interface Implementation Constructor & Destructor.
- CImpIPaperSink(COPaperSink* pBackObj, IUnknown* pUnkOuter);
- ~CImpIPaperSink(void);
- // IUnknown methods.
- STDMETHODIMP QueryInterface(REFIID, PPVOID);
- STDMETHODIMP_(ULONG) AddRef(void);
- STDMETHODIMP_(ULONG) Release(void);
- // IPaperSink methods.
- STDMETHODIMP Locked(void);
- STDMETHODIMP Unlocked(void);
- STDMETHODIMP Loaded(void);
- STDMETHODIMP Saved(void);
- STDMETHODIMP InkStart(
- SHORT nX,
- SHORT nY,
- SHORT nWidth,
- COLORREF crInkColor);
- STDMETHODIMP InkDraw(
- SHORT nX,
- SHORT nY);
- STDMETHODIMP InkStop(
- SHORT nX,
- SHORT nY);
- STDMETHODIMP Erased(void);
- STDMETHODIMP Resized(SHORT nWidth, SHORT nHeight);
- private:
- // Data private to this interface implementation of IPaper.
- COPaperSink* m_pBackObj; // Parent Object back pointer.
- IUnknown* m_pUnkOuter; // Outer unknown for Delegation.
- };
- // Make the otherwise private and nested IPaperSink interface
- // implementation a friend to COM object instantiations of this
- // COPaperSink COM object class.
- friend CImpIPaperSink;
- // Private data of COPaperSink COM objects.
- // Nested IPaperSink implementation instantiation. This IPaperSink
- // interface is instantiated inside this COPaperSink object as a
- // native interface.
- CImpIPaperSink m_ImpIPaperSink;
- // Main Object reference count.
- ULONG m_cRefs;
- // Outer unknown (aggregation delegation). Used when this COM object
- // is being aggregated.
- IUnknown* m_pUnkOuter;
- // Pointer to the main object that can service the Sink events.
- CGuiPaper* m_pGuiPaper;
- };
- typedef COPaperSink* PCOPaperSink;
- #endif // __cplusplus
- #endif // SINK_H