C#

public class MyControl : Control
{
  public static readonly Color DefaultBackColor = Color.Green;
  public MyControl()
  {
    BackColor = DefaultBackColor;
  }
  protected bool ShouldSerializeBackColor()
  {
    return BackColor != DefaultBackColor;
  }
  protected void ResetBackColor()
  {
    BackColor = DefaultBackColor;
  }
}

public class MyControl : Control
{
  public static readonly Color DefaultBackColor = Color.Green;
  public MyControl()
  {
    BackColor = DefaultBackColor;
  }
  [DefaultValue(typeof(Color), "Green")]
  public override BackColor
  {
    get { return base.BackColor; }
    set { base.BackColor = value; }
  }
}

Bitmap bmp = new Bitmap(this.Size.Width, this.Size.Height, e.Graphics;

<br />
protected override void OnPaint(PaintEventArgs e)<br />
{<br />
	e.Graphics.Clear(Color.White);<br />
	e.Graphics.DrawLine(Pens.Blue , 0 , 0, 100 , 100 );<br />
	Bitmap b = new Bitmap(100 ,100 , e.Graphics );<br />
	b.Save("c:\\test.bmp");<br />
{<br />

 <br />
protected override void OnPaint(PaintEventArgs e)<br />
{<br />
	Bitmap b = new Bitmap(100 ,100 , e.Graphics );<br />
	e.Graphics.Clear(Color.White);<br />
	e.Graphics.DrawLine(Pens.Blue , 0 , 0, 100 , 100 );<br />
	b.Save("c:\\test.bmp");<br />
}<br />

using (Graphics g1 = CreateGraphics())
{
  using (Bitmap bmp = new Bitmap(Bounds.Width, Bounds.Height, g1))
  {
    using (Graphics g2 = Graphics.FromImage(bmp))
    {
      PaintEventArgs e = new PaintEventArgs(g2, Bounds);
      OnPaint(e);
    }

    bmp.Save(filename);
  }
}

protected override void OnPaint(PaintEventArgs e)
{
  e.Graphics.Clear(Color.White);
  DateTime dt = DateTime.Now;
  for ( int i = 0 ; i < 600 ; i++)
    for ( int j = 0 ;  j < 600 ; j++)
    {
       e.Graphics.DrawLine(Pens.Blue , i,j,i+3,j+3);
    }
    label1.Text = ((TimeSpan)(DateTime.Now - dt)).TotalMilliseconds.ToString() ;
    base.OnPaint (e);
}
private void button1_Click(object sender, System.EventArgs e)
{
  using (Graphics g1 = CreateGraphics())
  {  
    using (Bitmap bmp = new Bitmap(Bounds.Width, Bounds.Height, g1))  
    {    
      using (Graphics g2 = Graphics.FromImage(bmp))    
    {      
    PaintEventArgs ee = new PaintEventArgs(g2, Bounds);      
    OnPaint(ee);    
  }    
  bmp.Save("C:\\Tt.BMP");  
}

"You can have everything in life you want if you will just help enough other people get what they want." --Zig Ziglar

The Second EuroCPian Event will be in Brussels on the 4th of September

"You can have everything in life you want if you will just help enough other people get what they want." --Zig Ziglar

The Second EuroCPian Event will be in Brussels on the 4th of September

Can't manage to P/Invoke that Win32 API in .NET? Why not do interop the wiki way!

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