bool DIDevice::Open()
{
	m_sName = ConvertACPToUTF8( JoystickInst.tszProductName );

	LOG->Trace( "Opening device '%s'", m_sName.c_str() );
	buffered = true;

	LPDIRECTINPUTDEVICE8 tmpdevice;

	// load joystick
	HRESULT hr = g_dinput->CreateDevice( JoystickInst.guidInstance, &tmpdevice, nullptr );
	if ( hr != DI_OK )
	{
		LOG->Info( hr_format(hr, "OpenDevice: IDirectInput_CreateDevice") );
		return false;
	}
	hr = tmpdevice->QueryInterface( IID_IDirectInputDevice8, (LPVOID *) &Device );
	tmpdevice->Release();
	if ( hr != DI_OK )
	{
		LOG->Info( hr_format(hr, "OpenDevice(%s): IDirectInputDevice::QueryInterface", m_sName.c_str()) );
		return false;
	}

	int coop = DISCL_NONEXCLUSIVE | DISCL_BACKGROUND;
	if( type == KEYBOARD )
		coop = DISCL_NONEXCLUSIVE | DISCL_FOREGROUND;

	hr = Device->SetCooperativeLevel( GraphicsWindow::GetHwnd(), coop );
	if ( hr != DI_OK )
	{
		LOG->Info( hr_format(hr, "OpenDevice(%s): IDirectInputDevice2::SetCooperativeLevel", m_sName.c_str()) );
		return false;
	}

	switch(type)
	{
		case KEYBOARD:
			hr = Device->SetDataFormat( &c_dfDIKeyboard );
			break;
		case JOYSTICK:
			hr = Device->SetDataFormat( &c_dfDIJoystick );
			break;
		case MOUSE:
			hr = Device->SetDataFormat( &c_dfDIMouse );
			break;
	}
	if ( hr != DI_OK )
	{
		LOG->Info( hr_format(hr, "OpenDevice(%s): IDirectInputDevice2::SetDataFormat", m_sName.c_str()) );
		return false;
	}

	switch( type )
	{
		case JOYSTICK:
			Device->EnumObjects( DIJoystick_EnumDevObjectsProc, this, DIDFT_BUTTON | DIDFT_AXIS | DIDFT_POV);
			break;
		case KEYBOARD:
			// Always 256-button.
			for( int b = 0; b < 256; ++b )
			{
				input_t in;
				in.type = in.KEY;

				in.num = ConvertScancodeToKey(b);
				in.ofs = b;
				buttons++;
				Inputs.push_back(in);
			}
			break;
		case MOUSE:
			Device->EnumObjects( DIMouse_EnumDevObjectsProc, this, DIDFT_BUTTON | DIDFT_AXIS | DIDFT_ANYINSTANCE );
			break;
	}

	{
		DIPROPDWORD dipdw;
		memset(&dipdw, 0, sizeof(dipdw));
		dipdw.diph.dwSize = sizeof(dipdw);
		dipdw.diph.dwHeaderSize = sizeof(dipdw.diph);
		dipdw.diph.dwObj = 0;
		dipdw.diph.dwHow = DIPH_DEVICE;
		dipdw.dwData = INPUT_QSIZE;
		hr = Device->SetProperty( DIPROP_BUFFERSIZE, &dipdw.diph );
		if ( hr == DI_POLLEDDEVICE )
		{
			/* This device doesn't support buffering, so we're forced
			 * to use less reliable polling. */
			buffered = false;
		}
		else if ( hr != DI_OK )
		{
			LOG->Info( hr_format(hr, "OpenDevice(%s): IDirectInputDevice2::SetProperty", m_sName.c_str()) );
			return false;
		}
	}

	return true;
}
 /*** IUnknown methods ***/
 HRESULT _stdcall QueryInterface (REFIID riid, LPVOID * ppvObj) {
     return RealDevice->QueryInterface(riid,ppvObj);
 }