System.Windows.Forms.CustomTabControl.OnMouseMove C# (CSharp) Method

        protected override void OnMouseMove(MouseEventArgs e)
        {
            base.OnMouseMove(e);
            if (this._StyleProvider.ShowTabCloser){
                Rectangle tabRect = this._StyleProvider.GetTabRect(this.ActiveIndex);
                if (tabRect.Contains(this.MousePosition)){
                    this.Invalidate();
                }
            }

            //	Initialise Drag Drop
              			if (this.AllowDrop && e.Button == MouseButtons.Left){
              				this.StartDragDrop();
              			}
        }