windows-nt/Source/XPSP1/NT/shell/iecontrols/inc/autoobj.h
2020-09-26 16:20:57 +08:00

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//=--------------------------------------------------------------------------=
// AutoObj.H
//=--------------------------------------------------------------------------=
// Copyright 1995-1996 Microsoft Corporation. All Rights Reserved.
//
// 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.
//=--------------------------------------------------------------------------=
//
// all of our objects will inherit from this class to share as much of the same
// code as possible. this super-class contains the unknown and dispatch
// implementations for them.
//
#ifndef _AUTOOBJ_H_
// all automation objects will use the Unknown object that supports aggegation.
//
#include "Unknown.H"
//=--------------------------------------------------------------------------=
// the constants in this header file uniquely identify your automation objects.
// make sure that for each object you have in the g_ObjectInfo table, you have
// a constant in this header file.
//
#include "LocalSrv.H"
#include "extobj.h"
//=--------------------------------------------------------------------------=
// AUTOMATIONOBJECTINFO
//=--------------------------------------------------------------------------=
// for each automation object type you wish to expose to the programmer/user
// that is not a control, you must fill out one of these structures. if the
// object isn't CoCreatable, then the first four fields should be empty.
// otherwise, they should be filled in with the appropriate information.
// use the macro DEFINE_AUTOMATIONOBJECT to both declare and define your object.
// make sure you have an entry in the global table of objects, g_ObjectInfo
// in the main .Cpp file for your InProc server.
//
typedef struct {
UNKNOWNOBJECTINFO unknowninfo; // fill in with 0's if we're not CoCreatable
long lVersion; // Version number of Object. ONLY USE IF YOU'RE CoCreatable!
const IID *riid; // object's type
LPCSTR pszHelpFile; // the helpfile for this automation object.
ITypeInfo *pTypeInfo; // typeinfo for this object
UINT cTypeInfo; // number of refs to the type info
} AUTOMATIONOBJECTINFO;
// macros to manipulate the AUTOMATIONOBJECTINFO in the global table table.
//
#define VERSIONOFOBJECT(index) ((AUTOMATIONOBJECTINFO *)(g_ObjectInfo[(index)]).pInfo)->lVersion
#define INTERFACEOFOBJECT(index) *(((AUTOMATIONOBJECTINFO *)(g_ObjectInfo[(index)]).pInfo)->riid)
#define PPTYPEINFOOFOBJECT(index) &((((AUTOMATIONOBJECTINFO *)(g_ObjectInfo[(index)]).pInfo)->pTypeInfo))
#define PTYPEINFOOFOBJECT(index) ((AUTOMATIONOBJECTINFO *)(g_ObjectInfo[(index)]).pInfo)->pTypeInfo
#define CTYPEINFOOFOBJECT(index) ((AUTOMATIONOBJECTINFO *)(g_ObjectInfo[(index)]).pInfo)->cTypeInfo
#define HELPFILEOFOBJECT(index) ((AUTOMATIONOBJECTINFO *)(g_ObjectInfo[(index)]).pInfo)->pszHelpFile
#ifndef INITOBJECTS
#define DEFINE_AUTOMATIONOBJECT(name, clsid, objname, fn, ver, riid, pszh) \
extern AUTOMATIONOBJECTINFO name##Object \
#else
#define DEFINE_AUTOMATIONOBJECT(name, clsid, objname, fn, ver, riid, pszh) \
AUTOMATIONOBJECTINFO name##Object = { { clsid, objname, fn }, ver, riid, pszh, NULL, 0} \
#endif // INITOBJECTS
//=--------------------------------------------------------------------------=
// Standard Dispatch and SupportErrorInfo
//=--------------------------------------------------------------------------=
// all objects should declare these in their class definitions so that they
// get standard implementations of IDispatch and ISupportErrorInfo.
//
#define DECLARE_STANDARD_DISPATCH() \
STDMETHOD(GetTypeInfoCount)(UINT *pctinfo) { \
return CAutomationObject::GetTypeInfoCount(pctinfo); \
} \
STDMETHOD(GetTypeInfo)(UINT itinfo, LCID lcid, ITypeInfo **ppTypeInfoOut) { \
return CAutomationObject::GetTypeInfo(itinfo, lcid, ppTypeInfoOut); \
} \
STDMETHOD(GetIDsOfNames)(REFIID riid, OLECHAR **rgszNames, UINT cnames, LCID lcid, DISPID *rgdispid) { \
return CAutomationObject::GetIDsOfNames(riid, rgszNames, cnames, lcid, rgdispid); \
} \
STDMETHOD(Invoke)(DISPID dispid, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pdispparams, VARIANT *pVarResult, EXCEPINFO *pexcepinfo, UINT *puArgErr) { \
return CAutomationObject::Invoke(dispid, riid, lcid, wFlags, pdispparams, pVarResult, pexcepinfo, puArgErr); \
} \
#define DECLARE_STANDARD_SUPPORTERRORINFO() \
STDMETHOD(InterfaceSupportsErrorInfo)(REFIID riid) { \
return CAutomationObject::InterfaceSupportsErrorInfo(riid); \
} \
enum {EXPANDO_DISABLED=FALSE, EXPANDO_ENABLED=TRUE};
//=--------------------------------------------------------------------------=
// CAutomationObject
//=--------------------------------------------------------------------------=
// global class that all automation objects can inherit from to give them a
// bunch of implementation for free, namely IDispatch and ISupportsErrorInfo
//
//
class CAutomationObject : public CUnknownObject {
public:
// aggreation query interface support
//
virtual HRESULT InternalQueryInterface(REFIID riid, void **ppvObjOut);
// IDispatch methods
//
STDMETHOD(GetTypeInfoCount)(UINT *);
STDMETHOD(GetTypeInfo)(UINT, LCID, ITypeInfo **);
STDMETHOD(GetIDsOfNames)(REFIID, OLECHAR **, UINT, LCID, DISPID *);
STDMETHOD(Invoke)(DISPID, REFIID, LCID, WORD, DISPPARAMS *, VARIANT *, EXCEPINFO *, UINT *);
// ISupportErrorInfo methods
//
STDMETHOD(InterfaceSupportsErrorInfo)(REFIID);
CAutomationObject(IUnknown *, int , void *, BOOL fExpandoEnabled=FALSE);
virtual ~CAutomationObject();
// callable functions -- things that most people will find useful.
//
virtual HINSTANCE GetResourceHandle(void);
HRESULT Exception(HRESULT hr, WORD idException, DWORD dwHelpContextID);
protected:
// member variables that derived objects might need to get at information in the
// global object table
//
int m_ObjectType;
private:
// member variables we don't share.
//
BYTE m_fLoadedTypeInfo;
BYTE m_fExpandoEnabled;
CExpandoObject* m_pexpando;
};
#define _AUTOOBJ_H_
#endif // _AUTOOBJ_H_