WinForms应用程序中的自定义标题栏/镶边

public class CustomTitleBar : Control
{
    public CustomTitleBar()
    {
        this.DoubleBuffered = true;
        this.SetStyle(ControlStyles.ResizeRedraw, true);
        this.SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);
        // 绘制自定义标题栏和边框
    }

    protected override void OnMouseDown(MouseEventArgs e)
    {
        base.OnMouseDown(e);
        // 处理鼠标按下事件，用于移动窗体
    }

    protected override void OnMouseMove(MouseEventArgs e)
    {
        base.OnMouseMove(e);
        // 处理鼠标移动事件，用于调整窗体大小
    }
}

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        // 隐藏默认的标题栏和边框
        this.FormBorderStyle = FormBorderStyle.None;

        // 创建自定义标题栏和边框
        CustomTitleBar titleBar = new CustomTitleBar();
        titleBar.Dock = DockStyle.Top;
        this.Controls.Add(titleBar);
    }
}