Csharp/C Sharp by API/System.Drawing.Imaging/Metafile

new Metafile(String fileName, hdc)

 
/*
GDI+ Programming in C# and VB .NET
by Nick Symmonds
Publisher: Apress
ISBN: 159059035X
*/
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
namespace MetaFile_c
{
    /// <summary>
    /// Summary description for MetaFile.
    /// </summary>
    public class MetaFile : System.Windows.Forms.Form
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ruponentModel.Container components = null;
        public MetaFile()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();
            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if (components != null) 
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }
        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
      // 
      // MetaFile
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.MaximizeBox = false;
      this.MinimizeBox = false;
      this.Name = "MetaFile";
      this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
      this.Text = "MetaFile";
      this.Load += new System.EventHandler(this.MetaFile_Load);
       }
        #endregion
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main() 
        {
            Application.Run(new MetaFile());
        }
    private void MetaFile_Load(object sender, System.EventArgs e)
    {
      // Create a graphics object from the forms graphics object
      // and get the handle to it.
      using (Graphics FormGraphics = this.CreateGraphics())
      {
        IntPtr hdc = FormGraphics.GetHdc();
        // Now create a blank metafile using the graphics handle
        // This is the metafile where all drawing instructions will 
        // be recorded.
        Metafile mf = new Metafile("mymeta.emf", hdc);
        // In order to record drawing commands we need to draw on something
        // That something is a new graphics object
        using (Graphics MetaGraphics = Graphics.FromImage(mf))
        {
          using ( mf )
          {
            MetaGraphics.SmoothingMode = SmoothingMode.AntiAlias;
            //Now we are ready to draw on the metagraphics object
            MetaGraphics.DrawRectangle(Pens.Black, 10, 10, 100, 50 );
            MetaGraphics.DrawLine(Pens.Orange, 10, 70, 150, 100 );
          }
        }
        FormGraphics.ReleaseHdc(hdc);
      }
    }
    protected override void OnPaint( PaintEventArgs e )
    {
      Metafile mf = new Metafile("mymeta.emf");
      e.Graphics.DrawImage(mf, new Point(10,10));
    }

    }
}