Ritesh

        public bool InitializeGraphics()
        {
            try
            {
                Cursor.Hide();

                AdapterInformation ai = Manager.Adapters.Default;
                Caps caps = Manager.GetDeviceCaps(ai.Adapter, DeviceType.Hardware);

                presentParams.Windowed = !doFullscreen;
                presentParams.SwapEffect = SwapEffect.Discard; // Discard the frames
                presentParams.EnableAutoDepthStencil = true; // Turn on a Depth stencil
                presentParams.AutoDepthStencilFormat = DepthFormat.D16; // And the stencil format

                presentParams.BackBufferCount = 1;
                presentParams.BackBufferWidth = m_dwWidth;                  //screen width
                presentParams.BackBufferHeight = m_dwHeight;                    //screen height
                presentParams.BackBufferFormat = ai.CurrentDisplayMode.Format;              //color depth

                presentParams.DeviceWindow = this;
                presentParams.MultiSample = MultiSampleType.None;               //anti-aliasing
                presentParams.PresentationInterval  = PresentInterval.Immediate; //don't wait... draw right away

                // Check if gfx card can do HW T&L
                CreateFlags flags = CreateFlags.SoftwareVertexProcessing;
                if (caps.DeviceCaps.SupportsHardwareTransformAndLight)
                    flags = CreateFlags.HardwareVertexProcessing;

                // Check if gfx card can do rasterization etc
                if (caps.DeviceCaps.SupportsPureDevice)
                    flags |= CreateFlags.PureDevice;

                device = new Device(ai.Adapter, DeviceType.Hardware, this, flags, presentParams); //Create a device
                device.DeviceReset += new System.EventHandler(this.OnResetDevice);
                // Add event handler to cancel device resize
                device.DeviceResizing += new System.ComponentModel.CancelEventHandler(OnDeviceResizing);

                this.OnCreateDevice(device, null);
                this.OnResetDevice(device, null);

                return true;
            }
            catch (DirectXException)
            {
                // Catch any errors and return a failure
                return false;
            }
        }

        void OnDeviceResizing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            Device device = sender as Device;

            // Don't let the device automatically resize itself to the window dimensions in fullscreen mode
            // This is needed because at this point the application hasn't gained control of the device yet, leading to a crash.
            e.Cancel = !device.PresentationParameters.Windowed;
        }