C#

class Graph : Form
{
  protected override void OnPaint(PaintEventArgs e)
  {
    base.OnPaint(e);
    DrawImage(e.Graphics);
  }
 
  private void DrawImage(Graphics g)
  {
    // ...
  }
 
  // The caller should be sure to call Dispose() on the bitmap
  // when finished with it to free memory immediately.
  public Bitmap ReturnImage() // "GetImage" would be a more consistent name
  {
    Bitmap bmp = new Bitmap(Width, Height);
    using (Graphics g = Graphics.FromImage(bmp))
      DrawImage(g);
 
    return bmp;
  }
 
  void SaveDrawing()
  {
    using (SaveFileDialog dialog = new SaveFileDialog())
    {
      // Initialize the dialog...
 
      if (dialog.ShowDialog() == DialogResult.OK)
        using (Bitmap bmp = ReturnImage())
          bmp.Save(dialog.FileName, ImageFormat.Bmp);
    }
  }
 
  // ...
}

<br />
private void DrawSmallRect(Graphics myGraphics)<br />
{<br />
Rectangle myRect1 = new Rectangle (140,200,350,250)<br />
LinearGradientBrush lBrush1 = new LinearGradientBrush( myRect1,<br />
	Color.LightGray,<br />
	Color.White,<br />
	LinearGradientMode.Vertical );<br />
<br />
myGraphics.FillRectangle (lBrush1,myRect1);<br />
}<br />
private void button1_Click(object sender, System.EventArgs e)<br />
{<br />
 temp1 = 1;<br />
}<br />
private void button2_Click(object sender, System.EventArgs e)<br />
{<br />
 temp2 = 1;<br />
}<br />
<br />
protected override void OnPaint(PaintEventArgs e)<br />
{  	<br />
 if(temp1 == 1)<br />
 {<br />
  DrawSmallRect(e.Graphics);<br />
 }<br />
 if(temp2 == 1)<br />
 {<br />
    DrawSmallRect(e.Graphics);<br />
 }<br />
}<br />
i'm trying to draw the same rectangle. i wanna see if it draws onto the same position. Thanks<br />