WINNT/VBoxTray/VBoxClipboard.cpp

	VBoxClipboard.cpp revision 9b4dd8dffe103b4ef000c75fdd22b50d97d93daa
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync/** @file
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync *
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * VBoxClipboard - Shared clipboard
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync *
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync/*
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync * Copyright (C) 2006-2010 Sun Microsystems, Inc.
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync *
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * available from http://www.virtualbox.org. This file is free software;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * you can redistribute it and/or modify it under the terms of the GNU
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * General Public License (GPL) as published by the Free Software
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync *
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync * additional information or have any questions.
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync#include "VBoxTray.h"
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync#include "helpers.h"
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync#include <VBox/HostServices/VBoxClipboardSvc.h>
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync#include <strsafe.h>
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsynctypedef struct _VBOXCLIPBOARDCONTEXT
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    const VBOXSERVICEENV *pEnv;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    uint32_t u32ClientID;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    ATOM     atomWindowClass;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    HWND     hwnd;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    HWND     hwndNextInChain;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync//    bool     fOperational;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync//    uint32_t u32LastSentFormat;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync//    uint64_t u64LastSentCRC64;
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync} VBOXCLIPBOARDCONTEXT;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsyncstatic char gachWindowClassName[] = "VBoxSharedClipboardClass";
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsyncstatic int vboxClipboardChanged(VBOXCLIPBOARDCONTEXT *pCtx)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    AssertPtr(pCtx);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    /* Query list of available formats and report to host. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    int rc = VINF_SUCCESS;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    if (FALSE == OpenClipboard(pCtx->hwnd))
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        rc = RTErrConvertFromWin32(GetLastError());
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        uint32_t u32Formats = 0;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        UINT format = 0;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        while ((format = EnumClipboardFormats (format)) != 0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync            Log(("vboxClipboardChanged: format = 0x%08X\n", format));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            switch (format)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                case CF_UNICODETEXT:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                case CF_TEXT:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    u32Formats |= VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                case CF_DIB:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                case CF_BITMAP:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    u32Formats |= VBOX_SHARED_CLIPBOARD_FMT_BITMAP;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                default:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    if (format >= 0xC000)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        TCHAR szFormatName[256];
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        int cActual = GetClipboardFormatName(format, szFormatName, sizeof(szFormatName)/sizeof (TCHAR));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        if (cActual)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            if (strcmp (szFormatName, "HTML Format") == 0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                u32Formats |= VBOX_SHARED_CLIPBOARD_FMT_HTML;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        CloseClipboard ();
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        rc = VbglR3ClipboardReportFormats(pCtx->u32ClientID, u32Formats);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    return rc;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync}
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsyncstatic LRESULT vboxClipboardProcessMsg(VBOXCLIPBOARDCONTEXT *pCtx, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    LRESULT rc = 0;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    switch (msg)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        case WM_CHANGECBCHAIN:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            HWND hwndRemoved = (HWND)wParam;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            HWND hwndNext    = (HWND)lParam;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync            Log(("vboxClipboardProcessMsg: WM_CHANGECBCHAIN: hwndRemoved %p, hwndNext %p, hwnd %p\n", hwndRemoved, hwndNext, pCtx->hwnd));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            if (hwndRemoved == pCtx->hwndNextInChain)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                /* The window that was next to our in the chain is being removed.
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                 * Relink to the new next window. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                pCtx->hwndNextInChain = hwndNext;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                if (pCtx->hwndNextInChain)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    /* Pass the message further. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    rc = SendMessage(pCtx->hwndNextInChain, WM_CHANGECBCHAIN, wParam, lParam);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        } break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        case WM_DRAWCLIPBOARD:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync            Log(("vboxClipboardProcessMsg: WM_DRAWCLIPBOARD, hwnd %p\n", pCtx->hwnd));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            if (GetClipboardOwner () != hwnd)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                /* Clipboard was updated by another application. */
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                rc = vboxClipboardChanged(pCtx);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            /* Pass the message to next windows in the clipboard chain. */
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync            if (RT_SUCCESS(rc))
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                rc = SendMessage(pCtx->hwndNextInChain, msg, wParam, lParam);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        } break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        case WM_CLOSE:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            /* Do nothing. Ignore the message. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        } break;
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        case WM_RENDERFORMAT:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            /* Insert the requested clipboard format data into the clipboard. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            uint32_t u32Format = 0;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            UINT format = (UINT)wParam;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync            Log(("vboxClipboardProcessMsg: WM_RENDERFORMAT, format = %x\n", format));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            switch (format)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                case CF_UNICODETEXT:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    u32Format |= VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                case CF_DIB:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    u32Format |= VBOX_SHARED_CLIPBOARD_FMT_BITMAP;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                default:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    if (format >= 0xC000)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        TCHAR szFormatName[256];
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        int cActual = GetClipboardFormatName(format, szFormatName, sizeof(szFormatName)/sizeof (TCHAR));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        if (cActual)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            if (strcmp (szFormatName, "HTML Format") == 0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                u32Format |= VBOX_SHARED_CLIPBOARD_FMT_HTML;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            if (u32Format == 0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                /* Unsupported clipboard format is requested. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                Log(("vboxClipboardProcessMsg: Unsupported clipboard format requested: %ld\n", u32Format));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                EmptyClipboard();
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                const uint32_t cbPrealloc = 4096; /* @todo r=andy Make it dynamic for supporting larger text buffers! */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                uint32_t cb = 0;
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                /* Preallocate a buffer, most of small text transfers will fit into it. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                HANDLE hMem = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, cbPrealloc);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                Log(("vboxClipboardProcessMsg: Preallocated handle hMem = %p\n", hMem));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                if (hMem)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    void *pMem = GlobalLock(hMem);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    Log(("vboxClipboardProcessMsg: Locked pMem = %p, GlobalSize = %ld\n", pMem, GlobalSize(hMem)));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    if (pMem)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        /* Read the host data to the preallocated buffer. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                        int vboxrc = VbglR3ClipboardReadData(pCtx->u32ClientID, u32Format, pMem, cbPrealloc, &cb);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                        Log(("vboxClipboardProcessMsg: VbglR3ClipboardReadData returned with rc = %Rrc\n",  vboxrc));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                        if (RT_SUCCESS(vboxrc))
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        {
d6c1ac4cabb20caef17d53c6fd371433a79343d8vboxsync                            if (cb == 0)
d6c1ac4cabb20caef17d53c6fd371433a79343d8vboxsync                            {
d6c1ac4cabb20caef17d53c6fd371433a79343d8vboxsync                                /* 0 bytes returned means the clipboard is empty.
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                 * Deallocate the memory and set hMem to NULL to get to
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                                 * the clipboard empty code path. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                GlobalUnlock(hMem);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                GlobalFree(hMem);
d6c1ac4cabb20caef17d53c6fd371433a79343d8vboxsync                                hMem = NULL;
d6c1ac4cabb20caef17d53c6fd371433a79343d8vboxsync                            }
d6c1ac4cabb20caef17d53c6fd371433a79343d8vboxsync                            else if (cb > cbPrealloc)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                GlobalUnlock(hMem);
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                /* The preallocated buffer is too small, adjust the size. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                hMem = GlobalReAlloc(hMem, cb, 0);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                Log(("vboxClipboardProcessMsg: Reallocated hMem = %p\n", hMem));
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                if (hMem)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                    pMem = GlobalLock(hMem);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                    Log(("vboxClipboardProcessMsg: Locked pMem = %p, GlobalSize = %ld\n", pMem, GlobalSize(hMem)));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    if (pMem)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        /* Read the host data to the preallocated buffer. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        uint32_t cbNew = 0;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                        vboxrc = VbglR3ClipboardReadData(pCtx->u32ClientID, u32Format, pMem, cb, &cbNew);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                        Log(("VbglR3ClipboardReadData returned with rc = %Rrc, cb = %d, cbNew = %d\n", vboxrc, cb, cbNew));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync                                        if (RT_SUCCESS (vboxrc) && cbNew <= cb)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                            cb = cbNew;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                            GlobalUnlock(hMem);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                            GlobalFree(hMem);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                            hMem = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                        GlobalFree(hMem);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        hMem = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            }
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            if (hMem)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                /* pMem is the address of the data. cb is the size of returned data. */
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                /* Verify the size of returned text, the memory block for clipboard
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                 * must have the exact string size.
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                 */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                if (u32Format == VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                {
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                    size_t cbActual = 0;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                    HRESULT hrc = StringCbLengthW((LPWSTR)pMem, cb, &cbActual);
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                    if (FAILED (hrc))
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                    {
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                        /* Discard invalid data. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                        GlobalUnlock(hMem);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                        GlobalFree(hMem);
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                        hMem = NULL;
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                    }
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                    else
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                    {
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                        /* cbActual is the number of bytes, excluding those used
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                         * for the terminating null character.
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                         */
dbded28ab93667af3b632833764415d857a30fbcvboxsync                                        cb = (uint32_t)(cbActual + 2);
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                }
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                            }
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                            if (hMem)
4ca78a9695174cccd2dc4c0f26da066622ed9d42vboxsync                            {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                GlobalUnlock(hMem);
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                hMem = GlobalReAlloc(hMem, cb, 0);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                Log(("vboxClipboardProcessMsg: Reallocated hMem = %p\n", hMem));
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                if (hMem)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    /* 'hMem' contains the host clipboard data.
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                                     * size is 'cb' and format is 'format'. */
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                                    HANDLE hClip = SetClipboardData(format, hMem);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                    Log(("vboxClipboardProcessMsg: WM_RENDERFORMAT hClip = %p\n", hClip));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    if (hClip)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        /* The hMem ownership has gone to the system. Finish the processing. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                        break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    }
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                    /* Cleanup follows. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        if (hMem)
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                            GlobalUnlock(hMem);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    if (hMem)
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                        GlobalFree(hMem);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                }
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                /* Something went wrong. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                EmptyClipboard();
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        } break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        case WM_RENDERALLFORMATS:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            /* Do nothing. The clipboard formats will be unavailable now, because the
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync             * windows is to be destroyed and therefore the guest side becomes inactive.
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync             */
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync            if (OpenClipboard(hwnd))
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                EmptyClipboard();
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                CloseClipboard();
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        } break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        case WM_USER:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            /* Announce available formats. Do not insert data, they will be inserted in WM_RENDER*. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            uint32_t u32Formats = (uint32_t)lParam;
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync            if (FALSE == OpenClipboard(hwnd))
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            {
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                DWORD dwErr = GetLastError();
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                Log(("vboxClipboardProcessMsg: WM_USER: Failed to open clipboard! Last error = %ld\n", dwErr));
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                rc = RTErrConvertFromWin32(dwErr);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            }
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                EmptyClipboard();
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                HANDLE hClip = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                if (u32Formats & VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    Log(("vboxClipboardProcessMsg: WM_USER: VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT\n"));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    hClip = SetClipboardData(CF_UNICODETEXT, NULL);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                if (u32Formats & VBOX_SHARED_CLIPBOARD_FMT_BITMAP)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    Log(("vboxClipboardProcessMsg: WM_USER: VBOX_SHARED_CLIPBOARD_FMT_BITMAP\n"));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    hClip = SetClipboardData(CF_DIB, NULL);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                if (u32Formats & VBOX_SHARED_CLIPBOARD_FMT_HTML)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    UINT format = RegisterClipboardFormat ("HTML Format");
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    Log(("vboxClipboardProcessMsg: WM_USER: VBOX_SHARED_CLIPBOARD_FMT_HTML 0x%04X\n", format));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    if (format != 0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                        hClip = SetClipboardData(format, NULL);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                CloseClipboard();
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                Log(("vboxClipboardProcessMsg: WM_USER: hClip = %p, err = %ld\n", hClip, GetLastError ()));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        } break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        case WM_USER + 1:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            /* Send data in the specified format to the host. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            uint32_t u32Formats = (uint32_t)lParam;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            HANDLE hClip = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            if (FALSE == OpenClipboard(hwnd))
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            {
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                DWORD dwErr = GetLastError();
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                Log(("vboxClipboardProcessMsg: WM_USER + 1: Failed to open clipboard! Last error = %ld\n", dwErr));
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                rc = RTErrConvertFromWin32(dwErr);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            }
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                int vboxrc;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                if (u32Formats & VBOX_SHARED_CLIPBOARD_FMT_BITMAP)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    hClip = GetClipboardData(CF_DIB);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    if (hClip != NULL)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                        LPVOID lp = GlobalLock(hClip);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        if (lp != NULL)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                            Log(("vboxClipboardProcessMsg: WM_USER + 1: CF_DIB\n"));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                            vboxrc = VbglR3ClipboardWriteData(pCtx->u32ClientID, VBOX_SHARED_CLIPBOARD_FMT_BITMAP,
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                                              lp, GlobalSize(hClip));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            GlobalUnlock(hClip);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            hClip = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                else if (u32Formats & VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    hClip = GetClipboardData(CF_UNICODETEXT);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    if (hClip != NULL)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    {
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                        LPWSTR uniString = (LPWSTR)GlobalLock(hClip);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        if (uniString != NULL)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                            Log(("vboxClipboardProcessMsg: WM_USER + 1: CF_UNICODETEXT\n"));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                            vboxrc = VbglR3ClipboardWriteData(pCtx->u32ClientID, VBOX_SHARED_CLIPBOARD_FMT_UNICODETEXT,
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                                              uniString, (lstrlenW(uniString) + 1) * 2);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            GlobalUnlock(hClip);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            hClip = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                else if (u32Formats & VBOX_SHARED_CLIPBOARD_FMT_HTML)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    UINT format = RegisterClipboardFormat ("HTML Format");
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    if (format != 0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    {
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                        hClip = GetClipboardData(format);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        if (hClip != NULL)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        {
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                            LPVOID lp = GlobalLock(hClip);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            if (lp != NULL)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                Log(("vboxClipboardProcessMsg: WM_USER + 1: CF_HTML\n"));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                vboxrc = VbglR3ClipboardWriteData(pCtx->u32ClientID, VBOX_SHARED_CLIPBOARD_FMT_HTML,
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                                                                  lp, GlobalSize(hClip));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                GlobalUnlock(hClip);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                hClip = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync                CloseClipboard();
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            if (hClip == NULL)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                /* Requested clipboard format is not available, send empty data. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                VbglR3ClipboardWriteData(pCtx->u32ClientID, 0, NULL, 0);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        } break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        default:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync            rc = DefWindowProc(hwnd, msg, wParam, lParam);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync    Log(("vboxClipboardProcessMsg returned with rc = %ld\n", rc));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    return rc;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync}
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsyncstatic LRESULT CALLBACK vboxClipboardWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsyncstatic int vboxClipboardInit (VBOXCLIPBOARDCONTEXT *pCtx)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    /* Register the Window Class. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    WNDCLASS wc;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.style         = CS_NOCLOSE;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.lpfnWndProc   = vboxClipboardWndProc;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.cbClsExtra    = 0;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.cbWndExtra    = 0;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.hInstance     = pCtx->pEnv->hInstance;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.hIcon         = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.hCursor       = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.hbrBackground = (HBRUSH)(COLOR_BACKGROUND + 1);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.lpszMenuName  = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    wc.lpszClassName = gachWindowClassName;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    pCtx->atomWindowClass = RegisterClass (&wc);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    int rc = VINF_SUCCESS;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    if (pCtx->atomWindowClass == 0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        rc = VERR_NOT_SUPPORTED;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        /* Create the window. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        pCtx->hwnd = CreateWindowEx (WS_EX_TOOLWINDOW | WS_EX_TRANSPARENT | WS_EX_TOPMOST,
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                     gachWindowClassName, gachWindowClassName,
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                     WS_POPUPWINDOW,
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                                     -200, -200, 100, 100, NULL, NULL, pCtx->pEnv->hInstance, NULL);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        if (pCtx->hwnd == NULL)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            rc = VERR_NOT_SUPPORTED;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            SetWindowPos(pCtx->hwnd, HWND_TOPMOST, -200, -200, 0, 0,
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                         SWP_NOACTIVATE | SWP_HIDEWINDOW | SWP_NOCOPYBITS | SWP_NOREDRAW | SWP_NOSIZE);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            pCtx->hwndNextInChain = SetClipboardViewer (pCtx->hwnd);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    Log(("vboxClipboardInit returned with rc = %Rrc\n", rc));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    return rc;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync}
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsyncstatic void vboxClipboardDestroy(VBOXCLIPBOARDCONTEXT *pCtx)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    if (pCtx->hwnd)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        ChangeClipboardChain (pCtx->hwnd, pCtx->hwndNextInChain);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        pCtx->hwndNextInChain = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        DestroyWindow (pCtx->hwnd);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        pCtx->hwnd = NULL;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    if (pCtx->atomWindowClass != 0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        UnregisterClass(gachWindowClassName, pCtx->pEnv->hInstance);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        pCtx->atomWindowClass = 0;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync}
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync/* Static since it is the single instance. Directly used in the windows proc. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsyncstatic VBOXCLIPBOARDCONTEXT gCtx = { NULL };
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsyncstatic LRESULT CALLBACK vboxClipboardWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    /* Forward with proper context. */
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync    return vboxClipboardProcessMsg(&gCtx, hwnd, msg, wParam, lParam);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync}
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsyncint VBoxClipboardInit(const VBOXSERVICEENV *pEnv, void **ppInstance, bool *pfStartThread)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync    Log(("VboxClipboardInit\n"));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    if (gCtx.pEnv)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        /* Clipboard was already initialized. 2 or more instances are not supported. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        return VERR_NOT_SUPPORTED;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
48d832e07616531bbb720d9c98103c83b561ebb6vboxsync    RT_ZERO (gCtx);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    gCtx.pEnv = pEnv;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    int rc = VbglR3ClipboardConnect(&gCtx.u32ClientID);
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync    if (RT_SUCCESS (rc))
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        rc = vboxClipboardInit(&gCtx);
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync        if (RT_SUCCESS (rc))
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            /* Always start the thread for host messages. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            *pfStartThread = true;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        }
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        else
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            VbglR3ClipboardDisconnect(gCtx.u32ClientID);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
9b4dd8dffe103b4ef000c75fdd22b50d97d93daavboxsync    if (RT_SUCCESS(rc))
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        *ppInstance = &gCtx;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    return rc;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync}
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsyncunsigned __stdcall VBoxClipboardThread(void *pInstance)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
315ad5b8dea4f6f933a01420cfb1e0fe19183c45vboxsync    Log(("VBoxClipboardThread\n"));
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    VBOXCLIPBOARDCONTEXT *pCtx = (VBOXCLIPBOARDCONTEXT *)pInstance;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    AssertPtr(pCtx);
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    /* The thread waits for incoming messages from the host. */
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    for (;;)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        uint32_t u32Msg;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        uint32_t u32Formats;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        int rc = VbglR3ClipboardGetHostMsg(pCtx->u32ClientID, &u32Msg, &u32Formats);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        if (RT_FAILURE(rc))
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            Log(("VBoxClipboardThread: Failed to call the driver for host message! rc = %Rrc\n", rc));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            if (rc == VERR_INTERRUPTED)
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                /* Wait for termination event. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                WaitForSingleObject(pCtx->pEnv->hStopEvent, INFINITE);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                break;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            /* Wait a bit before retrying. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            AssertPtr(pCtx->pEnv);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            if (WaitForSingleObject(pCtx->pEnv->hStopEvent, 1000) == WAIT_OBJECT_0)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                break;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            continue;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync       }
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        else
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            Log(("VBoxClipboardThread: VbglR3ClipboardGetHostMsg u32Msg = %ld, u32Formats = %ld\n", u32Msg, u32Formats));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync            switch (u32Msg)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                case VBOX_SHARED_CLIPBOARD_HOST_MSG_FORMATS:
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    /* The host has announced available clipboard formats.
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                     * Forward the information to the window, so it can later
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                     * respond to WM_RENDERFORMAT message. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    ::PostMessage (pCtx->hwnd, WM_USER, 0, u32Formats);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                } break;
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                case VBOX_SHARED_CLIPBOARD_HOST_MSG_READ_DATA:
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    /* The host needs data in the specified format. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    ::PostMessage (pCtx->hwnd, WM_USER + 1, 0, u32Formats);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                } break;
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                case VBOX_SHARED_CLIPBOARD_HOST_MSG_QUIT:
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    /* The host is terminating. */
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    rc = VERR_INTERRUPTED;
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                } break;
240f7d7012a5f64bcde850bcf048531a710d81cfvboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                default:
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                    Log(("VBoxClipboardThread: Unsupported message from host! Message = %ld\n", u32Msg));
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync                }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync            }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    return 0;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync}
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsyncvoid VBoxClipboardDestroy(const VBOXSERVICEENV *pEnv, void *pInstance)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync{
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    VBOXCLIPBOARDCONTEXT *pCtx = (VBOXCLIPBOARDCONTEXT *)pInstance;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    if (pCtx != &gCtx)
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    {
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync        Log(("VBoxClipboardDestroy: invalid instance %p (our = %p)!\n", pCtx, &gCtx));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync        pCtx = &gCtx;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    }
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    vboxClipboardDestroy (pCtx);
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync    VbglR3ClipboardDisconnect(pCtx->u32ClientID);
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    memset (pCtx, 0, sizeof (*pCtx));
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync    return;
e62cb87bae732e9968199a3ad153cc94004b7182vboxsync}
61e014c7370649a36da3a1ad85efda5d04e9fa3cvboxsync