92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
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/*===================================================================
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Microsoft Denali
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Microsoft Confidential.
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Copyright 1996 Microsoft Corporation. All Rights Reserved.
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Component: IDispatch implementation
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File: Dispatch.h
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Owner: DGottner
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This file contains our implementation of IDispatch
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===================================================================*/
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#ifndef _Dispatch_H
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#define _Dispatch_H
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/*
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* C D i s p a t c h
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*
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* IDispatch interface implementation for OLE objects
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*
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* This class contains the basic four IDispatch members. The Big Three
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* (QueryInterface, AddRef, Release) are left as pure virtual, as this
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* class is designed as an intermediate class for further derivation.
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*
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* This also means that we no longer need a pointer to the controlling unknown.
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*/
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class CDispatch : public IDispatch
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{
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private:
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const GUID * m_pGuidDispInterface;
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ITypeLib * m_pITypeLib;
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ITypeInfo * m_pITINeutral;
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public:
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CDispatch();
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~CDispatch();
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// Do this in Init because OLE interfaces in general do not take
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// parameters in the constructor. This call CANNOT fail, however.
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//
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void Init(const IID &GuidDispInterface, const ITypeLib *pITypeLib = NULL);
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// IDispatch members
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//
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STDMETHODIMP GetTypeInfoCount(UINT *);
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STDMETHODIMP GetTypeInfo(UINT, LCID, ITypeInfo **);
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STDMETHODIMP GetIDsOfNames(REFIID, OLECHAR **, UINT, LCID, DISPID *);
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STDMETHODIMP Invoke(DISPID, REFIID, LCID, WORD,
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DISPPARAMS *, VARIANT *, EXCEPINFO *, UINT *);
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};
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/*
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* C S u p p o r t E r r o r I n f o
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*
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* Implemention of ISupportErrorInfo for Denali classes
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*/
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class CSupportErrorInfo : public ISupportErrorInfo
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{
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private:
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IUnknown * m_pUnkObj;
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IUnknown * m_pUnkOuter;
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const GUID *m_pGuidDispInterface;
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public:
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CSupportErrorInfo(void);
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CSupportErrorInfo(IUnknown *pUnkObj, IUnknown *pUnkOuter, const IID &GuidDispInterface);
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void Init(IUnknown *pUnkObj, IUnknown *pUnkOuter, const GUID &GuidDispInterface);
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// IUnknown members that delegate to m_pUnkOuter.
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//
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STDMETHODIMP QueryInterface(REFIID, void **);
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STDMETHODIMP_(ULONG) AddRef(void);
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STDMETHODIMP_(ULONG) Release(void);
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// ISupportErrorInfo members
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//
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STDMETHODIMP InterfaceSupportsErrorInfo(REFIID);
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};
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extern void Exception(REFIID ObjID, LPOLESTR strSource, LPOLESTR strDescr);
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extern void ExceptionId(REFIID ObjID, UINT SourceID, UINT DescrID, HRESULT hrCode = S_OK);
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#endif /* _Dispatch_H */
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