1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#if !defined WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
#endif
#include <objidl.h>
#include <systools/win32/comtools.hxx>
/*
an APartment Neutral dataobject wrapper; this wrapper of an IDataObject
pointer can be used from any apartment without RPC_E_WRONG_THREAD
which normally occurs if an apartment tries to use an interface
pointer of another apartment; we use containment to hold the original
DataObject
*/
class CAPNDataObject : public IDataObject
{
public:
explicit CAPNDataObject(IDataObjectPtr rIDataObject);
virtual ~CAPNDataObject();
//IUnknown interface methods
STDMETHODIMP QueryInterface(REFIID iid, void** ppvObject) override;
STDMETHODIMP_( ULONG ) AddRef( ) override;
STDMETHODIMP_( ULONG ) Release( ) override;
// IDataObject interface methods
STDMETHODIMP GetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium ) override;
STDMETHODIMP GetDataHere( FORMATETC * pFormatetc, STGMEDIUM * pmedium ) override;
STDMETHODIMP QueryGetData( FORMATETC * pFormatetc ) override;
STDMETHODIMP GetCanonicalFormatEtc( FORMATETC * pFormatectIn, FORMATETC * pFormatetcOut ) override;
STDMETHODIMP SetData( FORMATETC * pFormatetc, STGMEDIUM * pmedium, BOOL fRelease ) override;
STDMETHODIMP EnumFormatEtc( DWORD dwDirection, IEnumFORMATETC** ppenumFormatetc ) override;
STDMETHODIMP DAdvise( FORMATETC * pFormatetc, DWORD advf, IAdviseSink * pAdvSink, DWORD* pdwConnection ) override;
STDMETHODIMP DUnadvise( DWORD dwConnection ) override;
STDMETHODIMP EnumDAdvise( IEnumSTATDATA** ppenumAdvise ) override;
private:
HRESULT MarshalIDataObjectIntoCurrentApartment( IDataObject** ppIDataObj );
private:
IDataObjectPtr m_rIDataObjectOrg;
HGLOBAL m_hGlobal;
LONG m_nRefCnt;
// prevent copy and assignment
private:
CAPNDataObject( const CAPNDataObject& theOther ) = delete;
CAPNDataObject& operator=( const CAPNDataObject& theOther ) = delete;
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
