Drawing smooth text and pictures on the extended glass area of your WinForm in Windows Vista

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D ;
using System.Text;
using System.Windows.Forms;

namespace textonglass
{
    public partial class Form1 : Form
    {
        int en;
        GraphicsPath fontpath;
        GraphicsPath glowpath;
        PathGradientBrush pathbrush;
        Graphics gph;

        public Form1()
        {
            InitializeComponent();

            if (System.Environment.OSVersion.Version.Major >= 6)  //make sure you are not on a legacy OS 
            {
                en = 0;
                MARGINS mg = new MARGINS();
                mg.m_Buttom = 0;
                mg.m_Left = 0;
                mg.m_Right = 0;
                mg.m_Top = pictureBox1.Height;
                 

                    DwmIsCompositionEnabled(ref en);  //check if the desktop composition is enabled
                    if (en > 0)
                    {
                        DwmExtendFrameIntoClientArea(this.Handle, ref mg);


                    }
                    else
                    {
                        MessageBox.Show("Desktop composition is disabled");
                    }
 
            }
            else
            {
                //MessageBox.Show("Why not try this on Vista?");
            }
            this.Paint += new PaintEventHandler(Form1_Paint);
            this.Shown += new EventHandler(Form1_Shown);
            

        }

        void Form1_Shown(object sender, EventArgs e)
        {
      
        }

        void Form1_Paint(object sender, PaintEventArgs e)
        {
            //throw new Exception("The method or operation is not implemented.");
            GlassText glasstxt = new GlassText();
            glasstxt.FillBlackRegion(e.Graphics, pictureBox1.ClientRectangle);
            //Bitmap membitmap = new Bitmap(pictureBox1.ClientRectangle.Width,
                //pictureBox1.ClientRectangle.Height);
            //membitmap.PixelFormat = System.Drawing.Imaging.PixelFormat.Format32bppRgb;
            //membitmap.RawFormat = System.Drawing.Imaging.ImageFormat.MemoryBmp;
            e.Graphics.DrawImage(Properties.Resources.ksokoban,0,0);
            
        }

        




        private void button1_Click(object sender, EventArgs e)
        {

            this.Refresh();  //clear the glass

            gph = this.CreateGraphics();
            gph.DrawImage(textonglass.Properties.Resources.ksokoban, new Point(0, 0));
            gph.Dispose();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Refresh();  //clear the glass


            gph = this.CreateGraphics();
            Rectangle rc = new Rectangle(0, 0, 140, 30);
            glowpath = new GraphicsPath();
            fontpath = new GraphicsPath();


            glowpath.AddEllipse(rc);
            fontpath.AddString("Hello Vista", new FontFamily("Tahoma"), 
                (int)FontStyle.Regular, 26, new Point(0, 0), StringFormat.GenericDefault); //Add the string to the path
            pathbrush = new PathGradientBrush(glowpath);                                    //init the glowpathbrush
            Color[] cr ={ Color.Transparent };
            gph.SmoothingMode = SmoothingMode.HighQuality;   //must set, or the text smoothing will not work
            pathbrush.CenterColor = Color.White;
            pathbrush.SurroundColors = cr;


            gph.FillEllipse(pathbrush, rc);         //draw the "glow"
            gph.FillPath(Brushes.Black, fontpath);  //draw the black text

            //dispose all objects
            pathbrush.Dispose();
            fontpath.Dispose();
            glowpath.Dispose();
            gph.Dispose();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            this.Refresh();  //clear the glass

            gph = this.CreateGraphics();
            fontpath = new GraphicsPath();

            fontpath.AddString("Hello Vista", new FontFamily("Tahoma"),
                (int)FontStyle.Regular, 26, new Point(0, 0), StringFormat.GenericDefault);   //Add the string to the path

            gph.SmoothingMode = SmoothingMode.HighQuality;                                    //must set, or the text smoothing will not work
            gph.FillPath(Brushes.White , fontpath);                                           //draw the font with white color


            //dispose all objects
            gph.Dispose();
            fontpath.Dispose();


        }

        #region DWM API
         
        public struct MARGINS
        {
            public int m_Left;
            public int m_Right;
            public int m_Top;
            public int m_Buttom;
        };


        [System.Runtime.InteropServices.DllImport("dwmapi.dll")]
        public extern static int DwmExtendFrameIntoClientArea(IntPtr hwnd, ref MARGINS margin);


        [System.Runtime.InteropServices.DllImport("dwmapi.dll")]
        public extern static int DwmIsCompositionEnabled(ref int en);



        #endregion

        private void button4_Click(object sender, EventArgs e)
        {
            GlassText glasstxt = new GlassText();
            glasstxt.FillBlackRegion(this.pictureBox1.CreateGraphics(), pictureBox1.ClientRectangle);
            glasstxt.DrawTextOnGlass(this.Handle, lblText.Text, lblText.Font, lblText.Bounds,10 );
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

    }
}