WINNT/VBoxTray/VBoxSeamless.cpp

	VBoxSeamless.cpp revision e0d9b16920de2b8f215d7d4fbba8c358b2aeb4a1
6728a36898fd2be125a28e84d2115d19aa4923edvboxsync/* $Id$ */
6728a36898fd2be125a28e84d2115d19aa4923edvboxsync/** @file
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * VBoxSeamless - Seamless windows
6728a36898fd2be125a28e84d2115d19aa4923edvboxsync */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync/*
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * Copyright (C) 2006-2007 Sun Microsystems, Inc.
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync *
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * available from http://www.virtualbox.org. This file is free software;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * you can redistribute it and/or modify it under the terms of the GNU
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * General Public License (GPL) as published by the Free Software
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync *
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * additional information or have any questions.
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#define _WIN32_WINNT 0x0500
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#include <windows.h>
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#include "VBoxTray.h"
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#include "VBoxSeamless.h"
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#include <VBoxHook.h>
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#include <VBoxDisplay.h>
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#include <VBox/VMMDev.h>
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync#include <iprt/assert.h>
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#include "helpers.h"
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsynctypedef struct _VBOXSEAMLESSCONTEXT
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync{
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    const VBOXSERVICEENV *pEnv;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    HMODULE    hModule;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    BOOL    (* pfnVBoxInstallHook)(HMODULE hDll);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    BOOL    (* pfnVBoxRemoveHook)();
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    PVBOXDISPIFESCAPE lpEscapeData;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync} VBOXSEAMLESSCONTEXT;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsynctypedef struct
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync{
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    HDC     hdc;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    HRGN    hrgn;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#ifndef MMSEAMLESS
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    RECT    rect;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#endif
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync} VBOX_ENUM_PARAM, *PVBOX_ENUM_PARAM;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsyncstatic VBOXSEAMLESSCONTEXT gCtx = {0};
6728a36898fd2be125a28e84d2115d19aa4923edvboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsyncvoid VBoxLogString(HANDLE hDriver, char *pszStr);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsyncint VBoxSeamlessInit(const VBOXSERVICEENV *pEnv, void **ppInstance, bool *pfStartThread)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync{
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    Log(("VBoxSeamlessInit\n"));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    *pfStartThread = false;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    gCtx.pEnv = pEnv;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    OSVERSIONINFO OSinfo;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    OSinfo.dwOSVersionInfoSize = sizeof (OSinfo);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    GetVersionEx (&OSinfo);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    /* We have to jump out here when using NT4, otherwise it complains about
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync       a missing API function "UnhookWinEvent" used by the dynamically loaded VBoxHook.dll below */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (OSinfo.dwMajorVersion <= 4)         /* Windows NT 4.0 or older */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        Log(("VBoxSeamlessInit: Windows NT 4.0 or older not supported!\n"));
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync        return VERR_NOT_SUPPORTED;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
6728a36898fd2be125a28e84d2115d19aa4923edvboxsync    /* Will fail if SetWinEventHook is not present (version < NT4 SP6 apparently) */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    gCtx.hModule = LoadLibrary(VBOXHOOK_DLL_NAME);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (gCtx.hModule)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        *(uintptr_t *)&gCtx.pfnVBoxInstallHook = (uintptr_t)GetProcAddress(gCtx.hModule, "VBoxInstallHook");
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync        *(uintptr_t *)&gCtx.pfnVBoxRemoveHook  = (uintptr_t)GetProcAddress(gCtx.hModule, "VBoxRemoveHook");
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        /* inform the host that we support the seamless window mode */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        VMMDevReqGuestCapabilities vmmreqGuestCaps = {0};
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        vmmdevInitRequest((VMMDevRequestHeader*)&vmmreqGuestCaps, VMMDevReq_ReportGuestCapabilities);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        vmmreqGuestCaps.caps = VMMDEV_GUEST_SUPPORTS_SEAMLESS;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        DWORD cbReturned;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        if (!DeviceIoControl(pEnv->hDriver, VBOXGUEST_IOCTL_VMMREQUEST(sizeof(vmmreqGuestCaps)), &vmmreqGuestCaps, sizeof(vmmreqGuestCaps),
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                             &vmmreqGuestCaps, sizeof(vmmreqGuestCaps), &cbReturned, NULL))
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            Log(("VBoxSeamlessInit: VMMDevReq_ReportGuestCapabilities: error doing IOCTL, last error: %d\n", GetLastError()));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            return VERR_INVALID_PARAMETER;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        *pfStartThread = true;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        *ppInstance = &gCtx;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        return VINF_SUCCESS;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    else
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        Log(("VBoxSeamlessInit: LoadLibrary failed with %d\n", GetLastError()));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        return VERR_INVALID_PARAMETER;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    return VINF_SUCCESS;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync}
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsyncvoid VBoxSeamlessDestroy(const VBOXSERVICEENV *pEnv, void *pInstance)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync{
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    Log(("VBoxSeamlessDestroy\n"));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    /* inform the host that we no longer support the seamless window mode */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    VMMDevReqGuestCapabilities vmmreqGuestCaps = {0};
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    vmmdevInitRequest((VMMDevRequestHeader*)&vmmreqGuestCaps, VMMDevReq_ReportGuestCapabilities);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    vmmreqGuestCaps.caps = 0;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    DWORD cbReturned;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (!DeviceIoControl(pEnv->hDriver, VBOXGUEST_IOCTL_VMMREQUEST(sizeof(vmmreqGuestCaps)), &vmmreqGuestCaps, sizeof(vmmreqGuestCaps),
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                         &vmmreqGuestCaps, sizeof(vmmreqGuestCaps), &cbReturned, NULL))
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        Log(("VMMDevReq_ReportGuestCapabilities: error doing IOCTL, last error: %d\n", GetLastError()));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (gCtx.pfnVBoxRemoveHook)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        gCtx.pfnVBoxRemoveHook();
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (gCtx.hModule)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        FreeLibrary(gCtx.hModule);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    gCtx.hModule = 0;
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync    return;
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync}
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsyncvoid VBoxSeamlessInstallHook()
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync{
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (gCtx.pfnVBoxInstallHook)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        /* Check current visible region state */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        VBoxSeamlessCheckWindows();
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync        gCtx.pfnVBoxInstallHook(gCtx.hModule);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync}
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsyncvoid VBoxSeamlessRemoveHook()
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync{
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (gCtx.pfnVBoxRemoveHook)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        gCtx.pfnVBoxRemoveHook();
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (gCtx.lpEscapeData)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        free(gCtx.lpEscapeData);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        gCtx.lpEscapeData = NULL;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync}
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
625c607af2ec5549c016c35f80cb8741eafd774bvboxsyncBOOL CALLBACK VBoxEnumFunc(HWND hwnd, LPARAM lParam)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync{
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    PVBOX_ENUM_PARAM    lpParam = (PVBOX_ENUM_PARAM)lParam;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    DWORD               dwStyle, dwExStyle;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    RECT                rectWindow, rectVisible;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    dwStyle   = GetWindowLong(hwnd, GWL_STYLE);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    dwExStyle = GetWindowLong(hwnd, GWL_EXSTYLE);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (   !(dwStyle & WS_VISIBLE)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        ||  (dwStyle & WS_CHILD))
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        return TRUE;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    Log(("VBoxEnumFunc %x\n", hwnd));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    /* Only visible windows that are present on the desktop are interesting here */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#ifndef MMSEAMLESS
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (    GetWindowRect(hwnd, &rectWindow)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        &&  IntersectRect(&rectVisible, &lpParam->rect, &rectWindow))
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#else
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (GetWindowRect(hwnd, &rectWindow))
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        rectVisible = rectWindow;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#endif
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        char szWindowText[256];
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        szWindowText[0] = 0;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        GetWindowText(hwnd, szWindowText, sizeof(szWindowText));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        /* Filter out Windows XP shadow windows */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        /** @todo still shows inside the guest */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        if (   szWindowText[0] == 0
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            && dwStyle == (WS_POPUP|WS_VISIBLE|WS_CLIPSIBLINGS)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            && dwExStyle == (WS_EX_LAYERED|WS_EX_TOOLWINDOW|WS_EX_TRANSPARENT|WS_EX_TOPMOST))
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            Log(("Filter out shadow window style=%x exstyle=%x\n", dwStyle, dwExStyle));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            return TRUE;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        /** @todo will this suffice? The Program Manager window covers the whole screen */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        if (strcmp(szWindowText, "Program Manager"))
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            Log(("Enum hwnd=%x rect (%d,%d) (%d,%d)\n", hwnd, rectWindow.left, rectWindow.top, rectWindow.right, rectWindow.bottom));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            Log(("title=%s style=%x exStyle=%x\n", szWindowText, dwStyle, dwExStyle));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            HRGN hrgn = CreateRectRgn(0,0,0,0);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            int ret = GetWindowRgn(hwnd, hrgn);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            if (ret == ERROR)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                Log(("GetWindowRgn failed with rc=%d\n", GetLastError()));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                SetRectRgn(hrgn, rectVisible.left, rectVisible.top, rectVisible.right, rectVisible.bottom);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            else
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                /* this region is relative to the window origin instead of the desktop origin */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                OffsetRgn(hrgn, rectWindow.left, rectWindow.top);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            if (lpParam->hrgn)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                /* create a union of the current visible region and the visible rectangle of this window. */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                CombineRgn(lpParam->hrgn, lpParam->hrgn, hrgn, RGN_OR);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                DeleteObject(hrgn);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            else
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                lpParam->hrgn = hrgn;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        else
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            Log(("Enum hwnd=%x rect (%d,%d) (%d,%d) (ignored)\n", hwnd, rectWindow.left, rectWindow.top, rectWindow.right, rectWindow.bottom));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            Log(("title=%s style=%x\n", szWindowText, dwStyle));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    return TRUE; /* continue enumeration */
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync}
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync
080aed76fbd7ad91c4986369370b268e39d6db70vboxsyncvoid VBoxSeamlessCheckWindows()
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync{
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync    VBOX_ENUM_PARAM param;
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync    param.hdc       = GetDC(HWND_DESKTOP);
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync    param.hrgn      = 0;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#ifndef MMSEAMLESS
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    GetWindowRect(GetDesktopWindow(), &param.rect);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    Log(("VBoxRecheckVisibleWindows desktop=%x rect (%d,%d) (%d,%d)\n", GetDesktopWindow(), param.rect.left, param.rect.top, param.rect.right, param.rect.bottom));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#endif
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    EnumWindows(VBoxEnumFunc, (LPARAM)&param);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (param.hrgn)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        DWORD cbSize;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        cbSize = GetRegionData(param.hrgn, 0, NULL);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        if (cbSize)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            PVBOXDISPIFESCAPE lpEscapeData = (PVBOXDISPIFESCAPE)malloc(VBOXDISPIFESCAPE_SIZE(cbSize));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            if (lpEscapeData)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                lpEscapeData->escapeCode = VBOXESC_SETVISIBLEREGION;
15b04a5785f14f37cf6b304b2982cee73d93bb32vboxsync                LPRGNDATA lpRgnData = VBOXDISPIFESCAPE_DATA(lpEscapeData, RGNDATA);
15b04a5785f14f37cf6b304b2982cee73d93bb32vboxsync                memset(lpRgnData, 0, cbSize);
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync                cbSize = GetRegionData(param.hrgn, cbSize, lpRgnData);
15b04a5785f14f37cf6b304b2982cee73d93bb32vboxsync                if (cbSize)
15b04a5785f14f37cf6b304b2982cee73d93bb32vboxsync                {
15b04a5785f14f37cf6b304b2982cee73d93bb32vboxsync#ifdef DEBUG
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    RECT *lpRect = (RECT *)&lpRgnData->Buffer[0];
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    Log(("New visible region: \n"));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    for (DWORD i=0;i<lpRgnData->rdh.nCount;i++)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                        Log(("visible rect (%d,%d)(%d,%d)\n", lpRect[i].left, lpRect[i].top, lpRect[i].right, lpRect[i].bottom));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync#endif
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    LPRGNDATA lpCtxRgnData = VBOXDISPIFESCAPE_DATA(gCtx.lpEscapeData, RGNDATA);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    if (    !gCtx.lpEscapeData
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync                        ||  (lpCtxRgnData->rdh.dwSize + lpCtxRgnData->rdh.nRgnSize != cbSize)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                        ||  memcmp(lpCtxRgnData, lpRgnData, cbSize))
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                        /* send to display driver */
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync                        VBoxDispIfEscape(&gCtx.pEnv->dispIf, lpEscapeData, cbSize);
080aed76fbd7ad91c4986369370b268e39d6db70vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                        if (gCtx.lpEscapeData)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                            free(gCtx.lpEscapeData);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                        gCtx.lpEscapeData = lpEscapeData;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    else
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                        Log(("Visible rectangles haven't changed; ignore\n"));
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync                }
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync                if (lpEscapeData != gCtx.lpEscapeData)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync                    free(lpEscapeData);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync            }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        DeleteObject(param.hrgn);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    ReleaseDC(HWND_DESKTOP, param.hdc);
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync}
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync/**
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * Thread function to wait for and process seamless mode change
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync * requests
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsyncunsigned __stdcall VBoxSeamlessThread(void *pInstance)
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync{
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    VBOXSEAMLESSCONTEXT *pCtx = (VBOXSEAMLESSCONTEXT *)pInstance;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    HANDLE gVBoxDriver = pCtx->pEnv->hDriver;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    bool fTerminate = false;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    VBoxGuestFilterMaskInfo maskInfo;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    DWORD cbReturned;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    BOOL fWasScreenSaverActive = FALSE, ret;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    maskInfo.u32OrMask = VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    maskInfo.u32NotMask = 0;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    if (DeviceIoControl (gVBoxDriver, VBOXGUEST_IOCTL_CTL_FILTER_MASK, &maskInfo, sizeof (maskInfo), NULL, 0, &cbReturned, NULL))
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
625c607af2ec5549c016c35f80cb8741eafd774bvboxsync        Log(("VBoxSeamlessThread: DeviceIOControl(CtlMask - or) succeeded\n"));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    else
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        Log(("VBoxSeamlessThread: DeviceIOControl(CtlMask) failed, SeamlessChangeThread exited\n"));
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        return 0;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    }
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    do
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync    {
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        /* wait for a seamless change event */
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        VBoxGuestWaitEventInfo waitEvent;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        waitEvent.u32TimeoutIn = 5000;
9562e2d410460d8fae06fa24297f172fee1d1995vboxsync        waitEvent.u32EventMaskIn = VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST;
6728a36898fd2be125a28e84d2115d19aa4923edvboxsync        if (DeviceIoControl(gVBoxDriver, VBOXGUEST_IOCTL_WAITEVENT, &waitEvent, sizeof(waitEvent), &waitEvent, sizeof(waitEvent), &cbReturned, NULL))
        {
            Log(("VBoxSeamlessThread: DeviceIOControl succeded\n"));

            /* are we supposed to stop? */
            if (WaitForSingleObject(pCtx->pEnv->hStopEvent, 0) == WAIT_OBJECT_0)
                break;

            Log(("VBoxSeamlessThread: checking event\n"));

            /* did we get the right event? */
            if (waitEvent.u32EventFlagsOut & VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST)
            {
                Log(("VBoxTray: going to get seamless change information.\n"));

                /* We got at least one event. Read the requested resolution
                 * and try to set it until success. New events will not be seen
                 * but a new resolution will be read in this poll loop.
                 */
                for (;;)
                {
                    /* get the seamless change request */
                    VMMDevSeamlessChangeRequest seamlessChangeRequest = {0};
                    vmmdevInitRequest((VMMDevRequestHeader*)&seamlessChangeRequest, VMMDevReq_GetSeamlessChangeRequest);
                    seamlessChangeRequest.eventAck = VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST;

                    BOOL fSeamlessChangeQueried = DeviceIoControl(gVBoxDriver, VBOXGUEST_IOCTL_VMMREQUEST(sizeof(seamlessChangeRequest)), &seamlessChangeRequest, sizeof(seamlessChangeRequest),
                                                                 &seamlessChangeRequest, sizeof(seamlessChangeRequest), &cbReturned, NULL);
                    if (fSeamlessChangeQueried)
                    {
                        Log(("VBoxSeamlessThread: mode change to %d\n", seamlessChangeRequest.mode));

                        switch(seamlessChangeRequest.mode)
                        {
                        case VMMDev_Seamless_Disabled:
                            if (fWasScreenSaverActive)
                            {
                                Log(("Re-enabling the screensaver\n"));
                                ret = SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, TRUE, NULL, 0);
                                if (!ret)
                                    Log(("SystemParametersInfo SPI_SETSCREENSAVEACTIVE failed with %d\n", GetLastError()));
                            }
                            PostMessage(gToolWindow, WM_VBOX_REMOVE_SEAMLESS_HOOK, 0, 0);
                            break;

                        case VMMDev_Seamless_Visible_Region:
                            ret = SystemParametersInfo(SPI_GETSCREENSAVEACTIVE, 0, &fWasScreenSaverActive, 0);
                            if (!ret)
                                Log(("SystemParametersInfo SPI_GETSCREENSAVEACTIVE failed with %d\n", GetLastError()));

                            if (fWasScreenSaverActive)
                                Log(("Disabling the screensaver\n"));

                            ret = SystemParametersInfo(SPI_SETSCREENSAVEACTIVE, FALSE, NULL, 0);
                            if (!ret)
                                Log(("SystemParametersInfo SPI_SETSCREENSAVEACTIVE failed with %d\n", GetLastError()));
                            PostMessage(gToolWindow, WM_VBOX_INSTALL_SEAMLESS_HOOK, 0, 0);
                            break;

                        case VMMDev_Seamless_Host_Window:
                            break;

                        default:
                            AssertFailed();
                            break;
                        }
                        break;
                    }
                    else
                    {
                        Log(("VBoxSeamlessThread: error from DeviceIoControl VBOXGUEST_IOCTL_VMMREQUEST\n"));
                    }
                    /* sleep a bit to not eat too much CPU while retrying */
                    /* are we supposed to stop? */
                    if (WaitForSingleObject(pCtx->pEnv->hStopEvent, 50) == WAIT_OBJECT_0)
                    {
                        fTerminate = true;
                        break;
                    }
                }
            }
        }
        else
        {
            Log(("VBoxTray: error 0 from DeviceIoControl VBOXGUEST_IOCTL_WAITEVENT\n"));
            /* sleep a bit to not eat too much CPU in case the above call always fails */
            if (WaitForSingleObject(pCtx->pEnv->hStopEvent, 10) == WAIT_OBJECT_0)
            {
                fTerminate = true;
                break;
            }
        }
    }
    while (!fTerminate);

    maskInfo.u32OrMask = 0;
    maskInfo.u32NotMask = VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST;
    if (DeviceIoControl (gVBoxDriver, VBOXGUEST_IOCTL_CTL_FILTER_MASK, &maskInfo, sizeof (maskInfo), NULL, 0, &cbReturned, NULL))
    {
        Log(("VBoxSeamlessThread: DeviceIOControl(CtlMask - not) succeeded\n"));
    }
    else
    {
        Log(("VBoxSeamlessThread: DeviceIOControl(CtlMask) failed\n"));
    }

    Log(("VBoxSeamlessThread: finished seamless change request thread\n"));
    return 0;
}