ComponentFactory.Krypton.Toolkit.VisualTaskDialog.button_keyDown C# (CSharp) Method

        private void button_keyDown(object sender, KeyEventArgs e)
        {
            // Escape key kills the dialog if we allow it to be closed
            if ((e.KeyCode == Keys.Escape) && ControlBox)
                Close();
            else
            {
                // Pressing Ctrl+C should copy message text into the clipboard
                if ((e.Modifiers == Keys.Control) && (e.KeyCode == Keys.C))
                {
                    StringBuilder sb = new StringBuilder();

                    sb.AppendLine("---------------------------");
                    sb.AppendLine(_windowTitle);
                    sb.AppendLine("---------------------------");
                    sb.AppendLine(_mainInstruction);
                    sb.AppendLine("---------------------------");
                    sb.AppendLine(_content);
                    sb.AppendLine("---------------------------");
                    if (_buttonOK.Visible)
                    {
                        sb.Append(_buttonOK.Text);
                        sb.Append("   ");
                    }
                    if (_buttonYes.Visible)
                    {
                        sb.Append(_buttonYes.Text);
                        sb.Append("   ");
                    }
                    if (_buttonNo.Visible)
                    {
                        sb.Append(_buttonNo.Text);
                        sb.Append("   ");
                    }
                    if (_buttonCancel.Visible)
                    {
                        sb.Append(_buttonCancel.Text);
                        sb.Append("   ");
                    }
                    if (_buttonRetry.Visible)
                    {
                        sb.Append(_buttonRetry.Text);
                        sb.Append("   ");
                    }
                    if (_buttonClose.Visible)
                    {
                        sb.Append(_buttonClose.Text);
                        sb.Append("   ");
                    }
                    sb.AppendLine("");
                    sb.AppendLine("---------------------------");

                    Clipboard.SetText(sb.ToString(), TextDataFormat.Text);
                }
            }
        }