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BEEPER.H
Package: MSDN_VC98.zip [view]
Upload User: bangxh
Upload Date: 2007-01-31
Package Size: 42235k
Code Size: 4k
Category:
Windows Develop
Development Platform:
Visual C++
- /*
- * BEEPER.H
- * Beeper Automation Object #2 Chapter 14
- *
- * Classes that implement the Beeper object.
- *
- * Copyright (c)1993-1995 Microsoft Corporation, All Right Reserved
- *
- * Kraig Brockschmidt, Microsoft
- * Internet : kraigb@microsoft.com
- * Compuserve: >INTERNET:kraigb@microsoft.com
- */
- #ifndef _BEEPER_H_
- #define _BEEPER_H_
- /*
- * This #define tells <bookguid.h> to not define GUIDs that will
- * be defined in MKTYPLIB-generated header files, like ibeeper.h.
- */
- #define GUIDS_FROM_TYPELIB
- #define INC_AUTOMATION
- #define CHAPTER14
- #include <inole.h>
- #include <malloc.h>
- //This file is generated from MKTYPLIB
- #include "ibeeper.h"
- //Help context ID for exceptions
- #define HID_SOUND_PROPERTY_LIMITATIONS 0x1E100
- //English exception strings
- #define IDS_0_MIN 16
- #define IDS_0_EXCEPTIONSOURCE (IDS_0_MIN)
- #define IDS_0_EXCEPTIONINVALIDSOUND (IDS_0_MIN+1)
- //German exception strings
- #define IDS_7_MIN 32
- #define IDS_7_EXCEPTIONSOURCE (IDS_7_MIN)
- #define IDS_7_EXCEPTIONINVALIDSOUND (IDS_7_MIN+1)
- //Forward class declarations for friend statements
- class CImpIDispatch;
- typedef CImpIDispatch *PCImpIDispatch;
- class CBeeper : public IBeeper
- {
- friend CImpIDispatch;
- protected:
- ULONG m_cRef; //Object reference count
- LPUNKNOWN m_pUnkOuter; //Controlling unknown
- PFNDESTROYED m_pfnDestroy; //To call on closure
- long m_lSound;
- PCImpIDispatch m_pImpIDispatch; //Our IDispatch
- public:
- CBeeper(LPUNKNOWN, PFNDESTROYED);
- ~CBeeper(void);
- BOOL Init(void);
- //Non-delegating object IUnknown
- STDMETHODIMP QueryInterface(REFIID, PPVOID);
- STDMETHODIMP_(ULONG) AddRef(void);
- STDMETHODIMP_(ULONG) Release(void);
- //IBeeper functions
- STDMETHODIMP_(long) get_Sound(void);
- STDMETHODIMP_(void) put_Sound(long);
- STDMETHODIMP_(long) Beep(void);
- };
- typedef CBeeper *PCBeeper;
- //DISPIDs for our dispinterface
- enum
- {
- PROPERTY_SOUND=0,
- METHOD_BEEP
- };
- /*
- * IDispatch interface implementations for the Beeper.
- */
- class CImpIDispatch : public IDispatch
- {
- public:
- ULONG m_cRef; //For debugging
- private:
- PCBeeper m_pObj;
- LPUNKNOWN m_pUnkOuter;
- WORD m_wException;
- ITypeInfo *m_pITINeutral; //Type information
- ITypeInfo *m_pITIGerman;
- public:
- CImpIDispatch(PCBeeper, LPUNKNOWN);
- ~CImpIDispatch(void);
- /*
- * This function is called from CBeeper functions that
- * are called from within DispInvoke to set an exception.
- * This is because the CBeeper functions have no way to
- * tell DispInvoke of such exceptions, so we have to
- * tell our IDispatch::Invoke implementation directly.
- */
- void Exception(WORD);
- //IUnknown members that delegate to m_pUnkOuter.
- STDMETHODIMP QueryInterface(REFIID, PPVOID);
- STDMETHODIMP_(ULONG) AddRef(void);
- STDMETHODIMP_(ULONG) Release(void);
- //IDispatch members
- STDMETHODIMP GetTypeInfoCount(UINT *);
- STDMETHODIMP GetTypeInfo(UINT, LCID, ITypeInfo **);
- STDMETHODIMP GetIDsOfNames(REFIID, OLECHAR **, UINT, LCID
- , DISPID *);
- STDMETHODIMP Invoke(DISPID, REFIID, LCID, WORD
- , DISPPARAMS *, VARIANT *, EXCEPINFO *, UINT *);
- };
- //Exceptions we can throw from IDispatch::Invoke
- enum
- {
- EXCEPTION_NONE=0,
- EXCEPTION_INVALIDSOUND=1000
- };
- //Exception filling function for the EXCEPINFO structure.
- HRESULT STDAPICALLTYPE FillException(EXCEPINFO *);
- #endif //_BEEPER_H_