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/* $Id: startmmr.cpp $ */
/** @file
* VBoxMMR - Multimedia Redirection
*/
/*
* Copyright (C) 2012 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#include <stdio.h>
#include <tchar.h>
#include <windows.h>
#include <iprt/initterm.h>
#include <VBox/Log.h>
#include <VBox/VBoxGuestLib.h>
const char *g_pszMMRDLL = "VBoxMMRHook";
const char *g_pszMMRPROC = "CBTProc";
const WCHAR *g_pwszMMRFlags = L"VBoxMMR";
const WCHAR *g_pwszMMRAdditions =
L"SOFTWARE\\Oracle\\VirtualBox Guest Additions";
const DWORD g_dwMMREnabled = 0x00000001;
HANDLE g_hCtrlEvent;
BOOL MMRIsEnabled()
{
LONG lResult;
HKEY hKey;
DWORD dwType = 0;
DWORD dwValue = 0;
DWORD dwSize = sizeof(dwValue);
BOOL fEnabled = TRUE;
lResult = RegOpenKeyExW(
HKEY_LOCAL_MACHINE, g_pwszMMRAdditions, 0, KEY_QUERY_VALUE, &hKey);
if (lResult == ERROR_SUCCESS)
{
lResult = RegQueryValueExW(
hKey, g_pwszMMRFlags, NULL, &dwType, (BYTE *) &dwValue, &dwSize);
RegCloseKey(hKey);
if (lResult == ERROR_SUCCESS &&
dwSize == sizeof(dwValue) &&
dwType == REG_DWORD)
{
fEnabled = g_dwMMREnabled & dwValue;
LogRel(("VBoxMMR: Registry setting: %d\n", dwValue));
}
}
return fEnabled;
}
BOOL CtrlHandler(DWORD type)
{
SetEvent(g_hCtrlEvent);
return TRUE;
}
int APIENTRY WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
HINSTANCE hMod = NULL;
HHOOK hHook = NULL;
HOOKPROC pHook = NULL;
int rc = RTR3InitExeNoArguments(0);
if (RT_FAILURE(rc))
{
LogRel(("VBoxMMR: Error initializing RT runtime: %d\n", rc));
return rc;
}
rc = VbglR3Init();
if (RT_FAILURE(rc))
{
LogRel(("VBoxMMR: Error initializing VbglR3 runtime: %d\n", rc));
return rc;
}
if (MMRIsEnabled())
{
hMod = LoadLibraryA(g_pszMMRDLL);
if (hMod == NULL)
{
LogRel(("VBoxMMR: Hooking library not found\n"));
return VERR_NOT_FOUND;
}
pHook = (HOOKPROC) GetProcAddress(hMod, g_pszMMRPROC);
if (pHook == NULL)
{
LogRel(("VBoxMMR: Hooking proc not found\n"));
FreeLibrary(hMod);
return VERR_NOT_FOUND;
}
hHook = SetWindowsHookEx(WH_CBT, pHook, hMod, 0);
if (hHook == NULL)
{
int rc = RTErrConvertFromWin32(GetLastError());
LogRel(("VBoxMMR: Error installing hooking proc: %d\n", rc));
FreeLibrary(hMod);
return rc;
}
g_hCtrlEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
if (SetConsoleCtrlHandler((PHANDLER_ROUTINE) CtrlHandler, TRUE))
{
WaitForSingleObject(g_hCtrlEvent, INFINITE);
}
else
{
int rc = RTErrConvertFromWin32(GetLastError());
LogRel(("VBoxMMR: Error installing ctrl handler: %d\n", rc));
}
CloseHandle(g_hCtrlEvent);
UnhookWindowsHookEx(hHook);
FreeLibrary(hMod);
}
VbglR3Term();
return 0;
}
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