bool DX::IniciaD3D( LPDIRECT3DDEVICE9 *pDevice, HWND hWnd, 
					int Largura, int Altura, bool vSync,
					bool ModoFullScreen )
{
    // Criando o objeto Direct3D
	LPDIRECT3D9	g_pD3D = NULL;

    if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )
	{
		MessageBox(NULL, "Não foi possível criar o objeto Direct3D",
	 					 "Falha no método Direct3DCreate9", NULL);

		SAFE_RELEASE(g_pD3D);
        return false;
	}
	

    // Parâmetros do Direct3D
	D3DPRESENT_PARAMETERS d3dpp; 
	ZeroMemory( &d3dpp, sizeof(d3dpp) );

	D3DDISPLAYMODE DisplayAtual;
	g_pD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT, &DisplayAtual);

	// MODO JANELA
	if ( ModoFullScreen == false )
	{
		d3dpp.Windowed = true;
		d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
	}
	// MODO FULLSCREEN
	else 
	{		
	    d3dpp.Windowed                   = false;
		d3dpp.BackBufferFormat           = DisplayAtual.Format;
		d3dpp.BackBufferWidth            = Largura;
		d3dpp.BackBufferHeight           = Altura;
		d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;
	} 

	d3dpp.SwapEffect             = D3DSWAPEFFECT_DISCARD;
	d3dpp.MultiSampleType        = D3DMULTISAMPLE_NONE;
	d3dpp.MultiSampleQuality     = 0;
	d3dpp.BackBufferCount        = 1;	
	d3dpp.hDeviceWindow          = hWnd;
	d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
	d3dpp.EnableAutoDepthStencil = true;
	d3dpp.Flags                  = 0;

	if ( vSync == true )
		d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_ONE;
	else
		d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
	

    // Criando o dispositivo
	D3DCAPS9 caps;
	g_pD3D->GetDeviceCaps(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &caps);

	int VP = 0;
	
	if( caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT )
		VP = D3DCREATE_HARDWARE_VERTEXPROCESSING;
	else
		VP = D3DCREATE_SOFTWARE_VERTEXPROCESSING;
    
	
	if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT,
									  D3DDEVTYPE_HAL,
									  hWnd,
                                      VP,
                                      &d3dpp,
									  pDevice ) ) )

    {	
		// Problemas na criação do dispositivo (pDevice)
		MessageBox(NULL, "O dispositivo gráfico não pôde ser criado.",
	 					"Falha no método CreateDevice", NULL );
	
		SAFE_RELEASE(g_pD3D);
		return false;
	
    }


	SAFE_RELEASE(g_pD3D);
    return true;
}