/*
* BEEPER.H
* Beeper Automation Object #3 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 CImpISupportErrorInfo;
typedef CImpISupportErrorInfo *PCImpISupportErrorInfo;
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;
//Our interfaces
PCImpIDispatch m_pImpIDispatch;
PCImpISupportErrorInfo m_pImpISuppErr;
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;
ITypeInfo *m_pITINeutral; //Type information
ITypeInfo *m_pITIGerman;
public:
CImpIDispatch(PCBeeper, LPUNKNOWN);
~CImpIDispatch(void);
//For raising exceptions
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
};
/*
* ISupportErrorInfo interface implementations for the Beeper.
*/
class CImpISupportErrorInfo : public ISupportErrorInfo
{
public:
ULONG m_cRef; //For debugging
private:
PCBeeper m_pObj;
LPUNKNOWN m_pUnkOuter;
public:
CImpISupportErrorInfo(PCBeeper, LPUNKNOWN);
~CImpISupportErrorInfo(void);
//IUnknown members that delegate to m_pUnkOuter.
STDMETHODIMP QueryInterface(REFIID, PPVOID);
STDMETHODIMP_(ULONG) AddRef(void);
STDMETHODIMP_(ULONG) Release(void);
//ISupportErrorInfo members
STDMETHODIMP InterfaceSupportsErrorInfo(REFIID);
};
#endif //_BEEPER_H_