public RichTextBoxScroll() : base()
{
TextBox = new RichTextBoxBack();
ScrollBar = new VScrollBarCustom();
Controls.Add(TextBox);
Controls.Add(ScrollBar);
TextBox.ScrollBars = RichTextBoxScrollBars.None;
TextBox.BorderStyle = BorderStyle.None;
TextBox.BackColor = BackColor;
TextBox.ForeColor = ForeColor;
TextBox.Show();
ScrollBar.Show();
TextBox.VScroll += OnVscrollChanged;
TextBox.MouseWheel += new MouseEventHandler(MWheel); // richtextbox without scroll bars do not handle mouse wheels
TextBox.TextChanged += TextChangeEventHandler;
ScrollBar.Scroll += new System.Windows.Forms.ScrollEventHandler(OnScrollBarChanged);
}