当前路径：Cool.Windows.Forms/CoolFormTitleBar.cs
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Cool.Windows.Forms
{
    public class CoolFormTitleBar : Panel
    {
        public CoolFormTitleBar()
        {
            this.SetStyle(
                 //ControlStyles.UserPaint |//使用自定义的绘制方式
                 ControlStyles.ResizeRedraw//当控件大小发生变化时就重新绘制
                | ControlStyles.SupportsTransparentBackColor//则控件接受 alpha 组件数小于 255 个的 BackColor 来模拟透明度
                | ControlStyles.AllPaintingInWmPaint//则控件忽略窗口消息 WM_ERASEBKGND 以减少闪烁
                | ControlStyles.OptimizedDoubleBuffer//则控件将首先绘制到缓冲区而不是直接绘制到屏幕，这可以减少闪烁
                , true);
            this.Size = new System.Drawing.Size(this.Width, 45);
            this.Dock = DockStyle.Top;
            this.BackColor = System.Drawing.ColorTranslator.FromHtml("#00a381");
            _titleImage = Properties.Resources.Logo;
            _titleText = this.Name;

            RectanglePointInit();


        }
        #region 属性
        private Image _titleImage;
        [System.ComponentModel.Browsable(true)]
        public Image TitleImage { get => _titleImage; set { _titleImage = value; this.Invalidate(); } }

        private string _titleText = "酷玩创想(CoolDream)";
        public string TitleText
        {
            get { return _titleText; }
            set
            {
                _titleText = value;
                this.Invalidate();
            }
        }

        p...