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