private void FormScreenShutcut_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                pointStart  = MousePosition;
                mouseDowned = true;

                if (currentSizeType > SizeType.Move)
                {
                    WindowUtils.Show(formColorPick.Handle);
                    WindowUtils.Top(formColorPick.Handle);
                }
                else if (currentSizeType == SizeType.Move && formEditScreenShutTools.CurrentTools != PaintTools.None)
                {
                    //工具初始化
                    paintBox.OnMouseDown(e);
                }

                if (rectChoosed)
                {
                    pointStartRefRect = new Point(MousePosition.X - lastFindedWndRect.Left, MousePosition.Y - lastFindedWndRect.Top);
                }
            }
        }