1 | /** @file
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2 | * Shared Clipboard - Common Guest and Host Code, for Windows OSes.
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3 | */
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4 |
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5 | /*
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6 | * Copyright (C) 2006-2019 Oracle Corporation
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7 | *
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8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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9 | * available from http://www.virtualbox.org. This file is free software;
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10 | * you can redistribute it and/or modify it under the terms of the GNU
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11 | * General Public License (GPL) as published by the Free Software
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12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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15 | *
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16 | * The contents of this file may alternatively be used under the terms
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17 | * of the Common Development and Distribution License Version 1.0
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18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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19 | * VirtualBox OSE distribution, in which case the provisions of the
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20 | * CDDL are applicable instead of those of the GPL.
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21 | *
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22 | * You may elect to license modified versions of this file under the
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23 | * terms and conditions of either the GPL or the CDDL or both.
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24 | */
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25 |
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26 | #ifndef VBOX_INCLUDED_GuestHost_SharedClipboard_win_h
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27 | #define VBOX_INCLUDED_GuestHost_SharedClipboard_win_h
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28 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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29 | # pragma once
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30 | #endif
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31 |
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32 | #include <iprt/types.h>
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33 | #include <iprt/win/windows.h>
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34 |
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35 | #include <VBox/GuestHost/SharedClipboard.h>
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36 |
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37 | # ifdef VBOX_WITH_SHARED_CLIPBOARD_URI_LIST
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38 | # include <vector>
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39 |
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40 | # include <iprt/cpp/ministring.h> /* For RTCString. */
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41 | # include <iprt/win/shlobj.h> /* For DROPFILES and friends. */
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42 | # include <VBox/com/string.h> /* For Utf8Str. */
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43 | # include <oleidl.h>
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44 |
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45 | # include <VBox/GuestHost/SharedClipboard-uri.h>
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46 |
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47 | using namespace com;
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48 | # endif /* VBOX_WITH_SHARED_CLIPBOARD_URI_LIST */
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49 |
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50 | #ifndef WM_CLIPBOARDUPDATE
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51 | # define WM_CLIPBOARDUPDATE 0x031D
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52 | #endif
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53 |
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54 | #define VBOX_CLIPBOARD_WNDCLASS_NAME "VBoxSharedClipboardClass"
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55 |
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56 | /** See: https://docs.microsoft.com/en-us/windows/desktop/dataxchg/html-clipboard-format
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57 | * Do *not* change the name, as this will break compatbility with other (legacy) applications! */
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58 | #define VBOX_CLIPBOARD_WIN_REGFMT_HTML "HTML Format"
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59 |
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60 | /** Default timeout (in ms) for passing down messages down the clipboard chain. */
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61 | #define VBOX_CLIPBOARD_CBCHAIN_TIMEOUT_MS 5000
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62 |
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63 | /** Sets announced clipboard formats from the host. */
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64 | #define VBOX_CLIPBOARD_WM_SET_FORMATS WM_USER
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65 | /** Reads data from the clipboard and sends it to the host. */
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66 | #define VBOX_CLIPBOARD_WM_READ_DATA WM_USER + 1
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67 | #ifdef VBOX_WITH_SHARED_CLIPBOARD_URI_LIST
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68 | /** Starts a reading transfer from the guest. */
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69 | # define VBOX_CLIPBOARD_WM_URI_START_READ WM_USER + 2
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70 | /** Starts a writing transfer to the guest. */
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71 | # define VBOX_CLIPBOARD_WM_URI_START_WRITE WM_USER + 3
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72 | #endif
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73 |
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74 | /* Dynamically load clipboard functions from User32.dll. */
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75 | typedef BOOL WINAPI FNADDCLIPBOARDFORMATLISTENER(HWND);
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76 | typedef FNADDCLIPBOARDFORMATLISTENER *PFNADDCLIPBOARDFORMATLISTENER;
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77 |
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78 | typedef BOOL WINAPI FNREMOVECLIPBOARDFORMATLISTENER(HWND);
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79 | typedef FNREMOVECLIPBOARDFORMATLISTENER *PFNREMOVECLIPBOARDFORMATLISTENER;
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80 |
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81 | /**
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82 | * Structure for keeping function pointers for the new clipboard API.
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83 | * If the new API is not available, those function pointer are NULL.
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84 | */
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85 | typedef struct _VBOXCLIPBOARDWINAPINEW
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86 | {
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87 | PFNADDCLIPBOARDFORMATLISTENER pfnAddClipboardFormatListener;
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88 | PFNREMOVECLIPBOARDFORMATLISTENER pfnRemoveClipboardFormatListener;
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89 | } VBOXCLIPBOARDWINAPINEW, *PVBOXCLIPBOARDWINAPINEW;
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90 |
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91 | /**
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92 | * Structure for keeping variables which are needed to drive the old clipboard API.
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93 | */
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94 | typedef struct _VBOXCLIPBOARDWINAPIOLD
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95 | {
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96 | /** Timer ID for the refresh timer. */
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97 | UINT timerRefresh;
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98 | /** Whether "pinging" the clipboard chain currently is in progress or not. */
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99 | bool fCBChainPingInProcess;
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100 | } VBOXCLIPBOARDWINAPIOLD, *PVBOXCLIPBOARDWINAPIOLD;
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101 |
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102 | /**
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103 | * Structure for maintaining a Shared Clipboard context on Windows platforms.
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104 | */
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105 | typedef struct _VBOXCLIPBOARDWINCTX
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106 | {
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107 | /** Window handle of our (invisible) clipbaord window. */
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108 | HWND hWnd;
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109 | /** Window handle which is next to us in the clipboard chain. */
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110 | HWND hWndNextInChain;
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111 | /** Window handle of the clipboard owner *if* we are the owner. */
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112 | HWND hWndClipboardOwnerUs;
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113 | /** Structure for maintaining the new clipboard API. */
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114 | VBOXCLIPBOARDWINAPINEW newAPI;
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115 | /** Structure for maintaining the old clipboard API. */
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116 | VBOXCLIPBOARDWINAPIOLD oldAPI;
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117 | } VBOXCLIPBOARDWINCTX, *PVBOXCLIPBOARDWINCTX;
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118 |
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119 | int VBoxClipboardWinOpen(HWND hWnd);
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120 | int VBoxClipboardWinClose(void);
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121 | int VBoxClipboardWinClear(void);
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122 |
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123 | int VBoxClipboardWinCheckAndInitNewAPI(PVBOXCLIPBOARDWINAPINEW pAPI);
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124 | bool VBoxClipboardWinIsNewAPI(PVBOXCLIPBOARDWINAPINEW pAPI);
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125 |
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126 | int VBoxClipboardWinChainAdd(PVBOXCLIPBOARDWINCTX pCtx);
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127 | int VBoxClipboardWinChainRemove(PVBOXCLIPBOARDWINCTX pCtx);
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128 | VOID CALLBACK VBoxClipboardWinChainPingProc(HWND hWnd, UINT uMsg, ULONG_PTR dwData, LRESULT lResult);
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129 | LRESULT VBoxClipboardWinChainPassToNext(PVBOXCLIPBOARDWINCTX pWinCtx, UINT msg, WPARAM wParam, LPARAM lParam);
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130 |
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131 | VBOXCLIPBOARDFORMAT VBoxClipboardWinClipboardFormatToVBox(UINT uFormat);
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132 | int VBoxClipboardWinGetFormats(PVBOXCLIPBOARDWINCTX pCtx, PVBOXCLIPBOARDFORMAT pfFormats);
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133 |
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134 | #ifdef VBOX_WITH_SHARED_CLIPBOARD_URI_LIST
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135 | int VBoxClipboardWinDropFilesToStringList(DROPFILES *pDropFiles, char **papszList, uint32_t *pcbList);
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136 | #endif
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137 |
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138 | int VBoxClipboardWinGetCFHTMLHeaderValue(const char *pszSrc, const char *pszOption, uint32_t *puValue);
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139 | bool VBoxClipboardWinIsCFHTML(const char *pszSource);
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140 | int VBoxClipboardWinConvertCFHTMLToMIME(const char *pszSource, const uint32_t cch, char **ppszOutput, uint32_t *pcbOutput);
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141 | int VBoxClipboardWinConvertMIMEToCFHTML(const char *pszSource, size_t cb, char **ppszOutput, uint32_t *pcbOutput);
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142 |
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143 | LRESULT VBoxClipboardWinHandleWMChangeCBChain(PVBOXCLIPBOARDWINCTX pWinCtx, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
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144 | int VBoxClipboardWinHandleWMDestroy(PVBOXCLIPBOARDWINCTX pWinCtx);
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145 | int VBoxClipboardWinHandleWMRenderAllFormats(PVBOXCLIPBOARDWINCTX pWinCtx, HWND hWnd);
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146 | int VBoxClipboardWinHandleWMTimer(PVBOXCLIPBOARDWINCTX pWinCtx);
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147 |
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148 | int VBoxClipboardWinAnnounceFormats(PVBOXCLIPBOARDWINCTX pWinCtx, VBOXCLIPBOARDFORMATS fFormats);
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149 | #ifdef VBOX_WITH_SHARED_CLIPBOARD_URI_LIST
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150 | int VBoxClipboardWinURITransferCreate(PVBOXCLIPBOARDWINCTX pWinCtx, PSHAREDCLIPBOARDURITRANSFER pTransfer);
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151 | void VBoxClipboardWinURITransferDestroy(PVBOXCLIPBOARDWINCTX pWinCtx, PSHAREDCLIPBOARDURITRANSFER pTransfer);
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152 | #endif
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153 |
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154 | # ifdef VBOX_WITH_SHARED_CLIPBOARD_URI_LIST
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155 | class SharedClipboardURIList;
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156 | # ifndef FILEGROUPDESCRIPTOR
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157 | class FILEGROUPDESCRIPTOR;
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158 | # endif
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159 |
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160 | class VBoxClipboardWinDataObject : public IDataObject //, public IDataObjectAsyncCapability
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161 | {
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162 | public:
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163 |
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164 | enum Status
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165 | {
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166 | Uninitialized = 0,
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167 | Initialized
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168 | };
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169 |
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170 | public:
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171 |
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172 | VBoxClipboardWinDataObject(PSHAREDCLIPBOARDURITRANSFER pTransfer,
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173 | LPFORMATETC pFormatEtc = NULL, LPSTGMEDIUM pStgMed = NULL, ULONG cFormats = 0);
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174 | virtual ~VBoxClipboardWinDataObject(void);
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175 |
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176 | public: /* IUnknown methods. */
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177 |
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178 | STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject);
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179 | STDMETHOD_(ULONG, AddRef)(void);
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180 | STDMETHOD_(ULONG, Release)(void);
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181 |
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182 | public: /* IDataObject methods. */
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183 |
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184 | STDMETHOD(GetData)(LPFORMATETC pFormatEtc, LPSTGMEDIUM pMedium);
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185 | STDMETHOD(GetDataHere)(LPFORMATETC pFormatEtc, LPSTGMEDIUM pMedium);
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186 | STDMETHOD(QueryGetData)(LPFORMATETC pFormatEtc);
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187 | STDMETHOD(GetCanonicalFormatEtc)(LPFORMATETC pFormatEct, LPFORMATETC pFormatEtcOut);
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188 | STDMETHOD(SetData)(LPFORMATETC pFormatEtc, LPSTGMEDIUM pMedium, BOOL fRelease);
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189 | STDMETHOD(EnumFormatEtc)(DWORD dwDirection, IEnumFORMATETC **ppEnumFormatEtc);
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190 | STDMETHOD(DAdvise)(LPFORMATETC pFormatEtc, DWORD advf, IAdviseSink *pAdvSink, DWORD *pdwConnection);
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191 | STDMETHOD(DUnadvise)(DWORD dwConnection);
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192 | STDMETHOD(EnumDAdvise)(IEnumSTATDATA **ppEnumAdvise);
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193 |
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194 | #ifdef VBOX_WITH_SHARED_CLIPBOARD_WIN_ASYNC
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195 | public: /* IDataObjectAsyncCapability methods. */
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196 |
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197 | STDMETHOD(EndOperation)(HRESULT hResult, IBindCtx* pbcReserved, DWORD dwEffects);
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198 | STDMETHOD(GetAsyncMode)(BOOL* pfIsOpAsync);
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199 | STDMETHOD(InOperation)(BOOL* pfInAsyncOp);
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200 | STDMETHOD(SetAsyncMode)(BOOL fDoOpAsync);
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201 | STDMETHOD(StartOperation)(IBindCtx* pbcReserved);
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202 | #endif /* VBOX_WITH_SHARED_CLIPBOARD_WIN_ASYNC */
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203 |
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204 | public:
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205 |
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206 | int Init(void);
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207 | void OnTransferComplete(int rc = VINF_SUCCESS);
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208 | void OnTransferCanceled();
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209 |
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210 | public:
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211 |
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212 | static DECLCALLBACK(int) readThread(RTTHREAD ThreadSelf, void *pvUser);
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213 |
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214 | static const char* ClipboardFormatToString(CLIPFORMAT fmt);
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215 |
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216 | protected:
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217 |
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218 | static int Thread(RTTHREAD hThread, void *pvUser);
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219 |
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220 | int copyToHGlobal(const void *pvData, size_t cbData, UINT fFlags, HGLOBAL *phGlobal);
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221 | int createFileGroupDescriptorFromTransfer(PSHAREDCLIPBOARDURITRANSFER pTransfer,
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222 | bool fUnicode, HGLOBAL *phGlobal);
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223 |
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224 | bool lookupFormatEtc(LPFORMATETC pFormatEtc, ULONG *puIndex);
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225 | void registerFormat(LPFORMATETC pFormatEtc, CLIPFORMAT clipFormat, TYMED tyMed = TYMED_HGLOBAL,
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226 | LONG lindex = -1, DWORD dwAspect = DVASPECT_CONTENT, DVTARGETDEVICE *pTargetDevice = NULL);
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227 | protected:
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228 |
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229 | /**
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230 | * Structure for keeping a single file system object entry.
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231 | */
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232 | struct FSOBJENTRY
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233 | {
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234 | /** Relative path of the object. */
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235 | Utf8Str strPath;
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236 | /** Related (cached) object information. */
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237 | SHAREDCLIPBOARDFSOBJINFO objInfo;
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238 | };
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239 |
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240 | /** Vector containing file system objects with its (cached) objection information. */
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241 | typedef std::vector<FSOBJENTRY> FsObjEntryList;
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242 |
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243 | Status m_enmStatus;
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244 | LONG m_lRefCount;
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245 | ULONG m_cFormats;
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246 | LPFORMATETC m_pFormatEtc;
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247 | LPSTGMEDIUM m_pStgMedium;
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248 | PSHAREDCLIPBOARDURITRANSFER m_pTransfer;
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249 | IStream *m_pStream;
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250 | ULONG m_uObjIdx;
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251 | /** List of (cached) file system root objects. */
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252 | FsObjEntryList m_lstRootEntries;
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253 | /** Event being triggered when reading the transfer list been completed. */
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254 | RTSEMEVENT m_EventListComplete;
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255 | /** Event being triggered when the transfer has been completed. */
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256 | RTSEMEVENT m_EventTransferComplete;
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257 | UINT m_cfFileDescriptorA;
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258 | UINT m_cfFileDescriptorW;
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259 | UINT m_cfFileContents;
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260 | };
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261 |
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262 | class VBoxClipboardWinEnumFormatEtc : public IEnumFORMATETC
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263 | {
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264 | public:
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265 |
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266 | VBoxClipboardWinEnumFormatEtc(LPFORMATETC pFormatEtc, ULONG cFormats);
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267 | virtual ~VBoxClipboardWinEnumFormatEtc(void);
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268 |
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269 | public: /* IUnknown methods. */
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270 |
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271 | STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject);
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272 | STDMETHOD_(ULONG, AddRef)(void);
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273 | STDMETHOD_(ULONG, Release)(void);
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274 |
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275 | public: /* IEnumFORMATETC methods. */
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276 |
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277 | STDMETHOD(Next)(ULONG cFormats, LPFORMATETC pFormatEtc, ULONG *pcFetched);
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278 | STDMETHOD(Skip)(ULONG cFormats);
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279 | STDMETHOD(Reset)(void);
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280 | STDMETHOD(Clone)(IEnumFORMATETC **ppEnumFormatEtc);
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281 |
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282 | public:
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283 |
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284 | static void CopyFormat(LPFORMATETC pFormatDest, LPFORMATETC pFormatSource);
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285 | static HRESULT CreateEnumFormatEtc(UINT cFormats, LPFORMATETC pFormatEtc, IEnumFORMATETC **ppEnumFormatEtc);
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286 |
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287 | private:
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288 |
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289 | LONG m_lRefCount;
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290 | ULONG m_nIndex;
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291 | ULONG m_nNumFormats;
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292 | LPFORMATETC m_pFormatEtc;
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293 | };
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294 |
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295 | /**
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296 | * Own IStream implementation to implement file-based clipboard operations
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297 | * through HGCM. Needed on Windows hosts and guests.
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298 | */
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299 | class VBoxClipboardWinStreamImpl : public IStream
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300 | {
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301 | public:
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302 |
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303 | VBoxClipboardWinStreamImpl(VBoxClipboardWinDataObject *pParent, PSHAREDCLIPBOARDURITRANSFER pTransfer,
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304 | const Utf8Str &strPath, PSHAREDCLIPBOARDFSOBJINFO pObjInfo);
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305 | virtual ~VBoxClipboardWinStreamImpl(void);
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306 |
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307 | public: /* IUnknown methods. */
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308 |
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309 | STDMETHOD(QueryInterface)(REFIID iid, void ** ppvObject);
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310 | STDMETHOD_(ULONG, AddRef)(void);
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311 | STDMETHOD_(ULONG, Release)(void);
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312 |
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313 | public: /* IStream methods. */
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314 |
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315 | STDMETHOD(Clone)(IStream** ppStream);
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316 | STDMETHOD(Commit)(DWORD dwFrags);
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317 | STDMETHOD(CopyTo)(IStream* pDestStream, ULARGE_INTEGER nBytesToCopy, ULARGE_INTEGER* nBytesRead, ULARGE_INTEGER* nBytesWritten);
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318 | STDMETHOD(LockRegion)(ULARGE_INTEGER nStart, ULARGE_INTEGER nBytes,DWORD dwFlags);
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319 | STDMETHOD(Read)(void* pvBuffer, ULONG nBytesToRead, ULONG* nBytesRead);
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320 | STDMETHOD(Revert)(void);
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321 | STDMETHOD(Seek)(LARGE_INTEGER nMove, DWORD dwOrigin, ULARGE_INTEGER* nNewPos);
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322 | STDMETHOD(SetSize)(ULARGE_INTEGER nNewSize);
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323 | STDMETHOD(Stat)(STATSTG* statstg, DWORD dwFlags);
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324 | STDMETHOD(UnlockRegion)(ULARGE_INTEGER nStart, ULARGE_INTEGER nBytes, DWORD dwFlags);
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325 | STDMETHOD(Write)(const void* pvBuffer, ULONG nBytesToRead, ULONG* nBytesRead);
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326 |
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327 | public: /* Own methods. */
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328 |
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329 | static HRESULT Create(VBoxClipboardWinDataObject *pParent, PSHAREDCLIPBOARDURITRANSFER pTransfer, const Utf8Str &strPath,
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330 | PSHAREDCLIPBOARDFSOBJINFO pObjInfo, IStream **ppStream);
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331 | private:
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332 |
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333 | /** Pointer to the parent data object. */
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334 | VBoxClipboardWinDataObject *m_pParent;
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335 | /** The stream object's current reference count. */
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336 | LONG m_lRefCount;
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337 | /** Pointer to the associated URI transfer. */
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338 | PSHAREDCLIPBOARDURITRANSFER m_pURITransfer;
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339 | /** The object handle to use. */
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340 | SHAREDCLIPBOARDOBJHANDLE m_hObj;
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341 | /** Object path. */
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342 | Utf8Str m_strPath;
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343 | /** (Cached) object information. */
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344 | SHAREDCLIPBOARDFSOBJINFO m_objInfo;
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345 | /** Number of bytes already processed. */
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346 | uint64_t m_cbProcessed;
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347 | /** Whether we already notified the parent of completion or not. */
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348 | bool m_fNotifiedComplete;
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349 | };
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350 |
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351 | /**
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352 | * Class for Windows-specifics for maintaining a single URI transfer.
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353 | * Set as pvUser / cbUser in SHAREDCLIPBOARDURICTX.
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354 | */
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355 | class SharedClipboardWinURITransferCtx
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356 | {
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357 | public:
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358 | SharedClipboardWinURITransferCtx()
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359 | : pDataObj(NULL) { }
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360 |
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361 | virtual ~SharedClipboardWinURITransferCtx()
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362 | {
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363 | if (pDataObj)
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364 | delete pDataObj;
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365 | }
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366 |
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367 | /** Pointer to data object to use for this transfer.
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368 | * Can be NULL if not being used. */
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369 | VBoxClipboardWinDataObject *pDataObj;
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370 | };
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371 | # endif /* VBOX_WITH_SHARED_CLIPBOARD_URI_LIST */
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372 | #endif /* !VBOX_INCLUDED_GuestHost_SharedClipboard_win_h */
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373 |
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