Frontends/VBoxHeadless/VBoxHeadless-win.cpp

	VBoxHeadless-win.cpp revision 540d6d40dd70d939f5e7da4966ba165599ddac1f
/* $Id$ */
/** @file
 * VBoxHeadless-win - The VirtualBox Headless frontend for running VMs on servers.
 *                    windows exe stub.
 */

/*
 * Copyright (C) 2011 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 <iprt/cdefs.h>

#include <windows.h>
#include <tchar.h>

extern "C" DECLIMPORT(int) ExecTrustedMain(int argc, char **argv, char **envp);

int main(int argc, char **argv, char **envp)
{
    return ExecTrustedMain(argc, argv, envp);
}

static LRESULT CALLBACK WindowProc(HWND hwnd,
    UINT uMsg,
    WPARAM wParam,
    LPARAM lParam
)
{
    if(uMsg == WM_DESTROY)
    {
        PostQuitMessage(0);
        return 0;
    }
    return DefWindowProc (hwnd, uMsg, wParam, lParam);
}

static LPCTSTR g_WndClassName = _T("VBoxNetDHCPClass");

static DWORD WINAPI MsgThreadProc(__in  LPVOID lpParameter)
{
     HWND                 hwnd = 0;
     HINSTANCE hInstance = (HINSTANCE)GetModuleHandle (NULL);
     bool bExit = false;

     /* Register the Window Class. */
     WNDCLASS wc;
     wc.style         = 0;
     wc.lpfnWndProc   = WindowProc;
     wc.cbClsExtra    = 0;
     wc.cbWndExtra    = sizeof(void *);
     wc.hInstance     = hInstance;
     wc.hIcon         = NULL;
     wc.hCursor       = NULL;
     wc.hbrBackground = (HBRUSH)(COLOR_BACKGROUND + 1);
     wc.lpszMenuName  = NULL;
     wc.lpszClassName = g_WndClassName;

     ATOM atomWindowClass = RegisterClass(&wc);

     if (atomWindowClass != 0)
     {
         /* Create the window. */
         hwnd = CreateWindowEx (WS_EX_TOOLWINDOW | WS_EX_TRANSPARENT | WS_EX_TOPMOST,
                 g_WndClassName, g_WndClassName,
                                                   WS_POPUPWINDOW,
                                                  -200, -200, 100, 100, NULL, NULL, hInstance, NULL);

         if (hwnd)
         {
             SetWindowPos(hwnd, HWND_TOPMOST, -200, -200, 0, 0,
                          SWP_NOACTIVATE | SWP_HIDEWINDOW | SWP_NOCOPYBITS | SWP_NOREDRAW | SWP_NOSIZE);

             MSG msg;
             while (GetMessage(&msg, NULL, 0, 0))
             {
                 TranslateMessage(&msg);
                 DispatchMessage(&msg);
             }

             DestroyWindow (hwnd);

             bExit = true;
         }

         UnregisterClass (g_WndClassName, hInstance);
     }

     if(bExit)
     {
         /* no need any accuracy here, in anyway the DHCP server usually gets terminated with TerminateProcess */
         exit(0);
     }

     return 0;
}

/** (We don't want a console usually.) */
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    NOREF(hInstance); NOREF(hPrevInstance); NOREF(lpCmdLine); NOREF(nCmdShow);

    HANDLE hThread = CreateThread(
      NULL, /*__in_opt   LPSECURITY_ATTRIBUTES lpThreadAttributes, */
      0, /*__in       SIZE_T dwStackSize, */
      MsgThreadProc, /*__in       LPTHREAD_START_ROUTINE lpStartAddress,*/
      NULL, /*__in_opt   LPVOID lpParameter,*/
      0, /*__in       DWORD dwCreationFlags,*/
      NULL /*__out_opt  LPDWORD lpThreadId*/
    );

    if(hThread != NULL)
        CloseHandle(hThread);

    return main(__argc, __argv, environ);
}