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151 lines
4.2 KiB
151 lines
4.2 KiB
//***************************************************************************
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//
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// cdisphlp.h
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//
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// Module: Client side of WBEMS marshalling.
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//
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// Purpose: Defines the CDispatchHelper object
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//
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// Copyright (c) 1998-1999 Microsoft Corporation
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//
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//***************************************************************************
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#ifndef _disphlp_H_
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#define _disphlp_H_
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// This class implements the IDispatch interface using a type library.
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class CDispatchHelp
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{
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private:
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BSTR m_objectName;
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HRESULT m_hResult; // Last HRESULT returned from CIMOM call
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protected:
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ITypeInfo *m_pITINeutral; //Type information for interface
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ITypeInfo *m_pCITINeutral; //Type information for class
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IDispatch *m_pObj;
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GUID m_iGUID; // Interface GUID
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GUID m_cGUID; // Class GUID
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/*
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* May be overriden in subclass to provide bespoke
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* handling of exceptions.
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*/
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virtual HRESULT HandleError (
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DISPID dispidMember,
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unsigned short wFlags,
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DISPPARAMS FAR* pdispparams,
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VARIANT FAR* pvarResult,
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UINT FAR* puArgErr,
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HRESULT hRes)
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{
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return hRes;
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}
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/*
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* May be overriden in subclass to provide
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* bespoke handling of VT_NULL dispparams.
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*/
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virtual bool HandleNulls (
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DISPID dispidMember,
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unsigned short wFlags)
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{
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// By default treat a VT_NULL as a default
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// value in all methods.
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return (wFlags & DISPATCH_METHOD);
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}
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public:
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CDispatchHelp();
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virtual ~CDispatchHelp(void);
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void SetObj(IDispatch * pObj, GUID interfaceGuid,
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GUID classGuid, LPWSTR objectName);
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STDMETHOD(GetTypeInfoCount)(THIS_ UINT FAR* pctinfo);
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STDMETHOD(GetTypeInfo)(
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THIS_
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UINT itinfo,
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LCID lcid,
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ITypeInfo FAR* FAR* pptinfo);
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STDMETHOD(GetIDsOfNames)(
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THIS_
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REFIID riid,
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OLECHAR FAR* FAR* rgszNames,
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UINT cNames,
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LCID lcid,
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DISPID FAR* rgdispid);
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STDMETHOD(Invoke)(
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THIS_
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DISPID dispidMember,
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REFIID riid,
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LCID lcid,
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WORD wFlags,
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DISPPARAMS FAR* pdispparams,
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VARIANT FAR* pvarResult,
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EXCEPINFO FAR* pexcepinfo,
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UINT FAR* puArgErr);
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// IDispatchEx methods
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HRESULT STDMETHODCALLTYPE GetDispID(
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/* [in] */ BSTR bstrName,
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/* [in] */ DWORD grfdex,
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/* [out] */ DISPID __RPC_FAR *pid);
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/* [local] */ HRESULT STDMETHODCALLTYPE InvokeEx(
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/* [in] */ DISPID id,
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/* [in] */ LCID lcid,
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/* [in] */ WORD wFlags,
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/* [in] */ DISPPARAMS __RPC_FAR *pdp,
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/* [out] */ VARIANT __RPC_FAR *pvarRes,
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/* [out] */ EXCEPINFO __RPC_FAR *pei,
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/* [unique][in] */ IServiceProvider __RPC_FAR *pspCaller)
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{
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UINT uArgErr;
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return Invoke(id, IID_NULL, lcid, wFlags, pdp, pvarRes, pei, &uArgErr);
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}
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HRESULT STDMETHODCALLTYPE DeleteMemberByName(
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/* [in] */ BSTR bstr,
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/* [in] */ DWORD grfdex)
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{ return S_FALSE; }
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HRESULT STDMETHODCALLTYPE DeleteMemberByDispID(
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/* [in] */ DISPID id)
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{ return S_FALSE; }
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HRESULT STDMETHODCALLTYPE GetMemberProperties(
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/* [in] */ DISPID id,
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/* [in] */ DWORD grfdexFetch,
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/* [out] */ DWORD __RPC_FAR *pgrfdex)
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{ return S_FALSE; }
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HRESULT STDMETHODCALLTYPE GetMemberName(
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/* [in] */ DISPID id,
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/* [out] */ BSTR __RPC_FAR *pbstrName)
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{ return S_FALSE; }
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HRESULT STDMETHODCALLTYPE GetNextDispID(
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/* [in] */ DWORD grfdex,
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/* [in] */ DISPID id,
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/* [out] */ DISPID __RPC_FAR *pid)
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{ return S_FALSE; }
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HRESULT STDMETHODCALLTYPE GetNameSpaceParent(
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/* [out] */ IUnknown __RPC_FAR *__RPC_FAR *ppunk)
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{ return S_FALSE; }
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// IProvideClassInfo methods
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HRESULT STDMETHODCALLTYPE GetClassInfo(
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/* [out] */ ITypeInfo __RPC_FAR *__RPC_FAR *ppTI);
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// Other methods
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void RaiseException (HRESULT hr);
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};
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#endif
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