private void PrepareDXDevice()
{
pParams.BackBufferWidth = Math.Max(_CurrentDXWindowSize.Width, 1);
pParams.BackBufferHeight = Math.Max(_CurrentDXWindowSize.Height, 1);
pParams.BackBufferFormat = SurfaceFormat.Color;
pParams.DepthStencilFormat = DepthFormat.Depth24Stencil8;
pParams.DeviceWindowHandle = dxHandle;
pParams.IsFullScreen = false;
//pParams.PresentationInterval = PresentInterval.Immediate;
DxDevice = CreateGraphicsDevice(pParams);
fontEngine = new FontEngine(UserSettings.FontName, UserSettings.FontStyle, UserSettings.FontSize, DxDevice);
sprite = new SpriteBatch(DxDevice);
}