Andwho.Windows.Forms.QQTextBoxEx.OnMouseDown C# (CSharp) Method

        protected override void OnMouseDown(MouseEventArgs e)
        {
            base.OnMouseDown(e);
            if (this._icon != null && this._iconIsButton)
            {
                if (e.Button == MouseButtons.Left && this.IconRect.Contains(e.Location))
                {
                    this.IconMouseState = EMouseState.Down;
                }
            }
        }