C#

private Point _resizePoint;

private void panel1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
	_resizePoint = new Point(e.X, e.Y);		
}

private void panel1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e)
{
	_resizePoint = Point.Empty;	
}

private void panel1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
	if (_resizePoint != Point.Empty)
	{
		this.Width += (e.X - _resizePoint.X);
	}
}

videhr wrote:

Does it mean that I can inherit from Bitmap class my class like this :

class JpgImage
{
    private Bitmap jpg;

    public JpgImage(string file)
    {
        jpg = new Bitmap(file);
    }
}

videhr wrote:

Now with jpg I can create drawing(like rectangular or elipse,line etc),am I right?

<br />
File.SetAttributes(path, FileAttributes.Hidden);

DirectoryInfo di = new DirectoryInfo(@"c:\Test");
di.Attributes = FileAttributes.Hidden;