| 1 | /* $Id: VBoxComEvents.h 55401 2015-04-23 10:03:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | *
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| 4 | * Declaration of COM Events Helper routines.
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| 5 | */
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| 6 |
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| 7 | /*
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| 8 | * Copyright (C) 2010 Oracle Corporation
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| 9 | *
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| 10 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 11 | * available from http://www.virtualbox.org. This file is free software;
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| 12 | * you can redistribute it and/or modify it under the terms of the GNU
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| 13 | * General Public License (GPL) as published by the Free Software
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| 14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 15 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 16 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 17 | */
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| 18 |
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| 19 | #ifndef __VBOXCOMEVENTS_h__
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| 20 | #define __VBOXCOMEVENTS_h__
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| 21 |
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| 22 | #include <map>
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| 23 |
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| 24 | #include "VBox/com/string.h"
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| 25 | #include "VBox/com/guid.h"
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| 26 |
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| 27 | #include <VBox/err.h>
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| 28 |
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| 29 | #include <atlcom.h>
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| 30 |
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| 31 |
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| 32 | class ComEventDesc
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| 33 | {
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| 34 | public:
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| 35 | ComEventDesc()
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| 36 | : mArgc(0), mArgs(0), mPos(0)
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| 37 | {}
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| 38 | ~ComEventDesc()
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| 39 | {
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| 40 | if (mArgs)
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| 41 | delete [] mArgs;
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| 42 | }
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| 43 |
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| 44 | void init(const char* name, int argc)
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| 45 | {
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| 46 | // copies content
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| 47 | mName = name;
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| 48 | mArgc = argc;
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| 49 | if (mArgs)
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| 50 | delete [] mArgs;
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| 51 | mArgs = new CComVariant[mArgc];
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| 52 | mPos = argc - 1;
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| 53 | }
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| 54 |
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| 55 | template <class T>
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| 56 | ComEventDesc& add(T v)
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| 57 | {
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| 58 | Assert(mPos>= 0);
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| 59 | mArgs[mPos] = v;
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| 60 | mPos--;
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| 61 | return *this;
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| 62 | }
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| 63 |
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| 64 | private:
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| 65 | com::Utf8Str mName;
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| 66 | int mArgc;
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| 67 | CComVariant* mArgs;
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| 68 | int mPos;
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| 69 |
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| 70 | friend class ComEventsHelper;
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| 71 | };
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| 72 |
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| 73 | class ComEventsHelper
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| 74 | {
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| 75 | public:
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| 76 | ComEventsHelper();
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| 77 | ~ComEventsHelper();
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| 78 |
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| 79 | HRESULT init(const com::Guid &aGuid);
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| 80 | HRESULT lookup(com::Utf8Str &aName, DISPID *did);
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| 81 | HRESULT fire(IDispatch* aObj, ComEventDesc& desc, CComVariant *pResult);
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| 82 |
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| 83 | private:
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| 84 | typedef std::map<com::Utf8Str, DISPID> ComEventsMap;
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| 85 |
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| 86 | ComEventsMap evMap;
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| 87 | };
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| 88 |
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| 89 | #endif /* __VBOXCOMEVENTS_h__ */
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