Winform窗体缩放下使用剪切板功能出现页面闪动解决分析

using System;
using System.Runtime.InteropServices;
namespace WindowsFormsApp2
{
    class MyClipboard
    {
        [DllImport("User32")]
        public static extern bool OpenClipboard(IntPtr hWndNewOwner);
        [DllImport("User32")]
        public static extern bool CloseClipboard();
        [DllImport("User32")]
        public static extern bool EmptyClipboard();
        [DllImport("User32")]
        public static extern bool IsClipboardFormatAvailable(int format);
        [DllImport("User32")]
        public static extern IntPtr GetClipboardData(int uFormat);
        [DllImport("User32", CharSet = CharSet.Unicode)]
        public static extern IntPtr SetClipboardData(int uFormat, IntPtr hMem);
        public static void FormsCopy()
        {
            System.Windows.Forms.Clipboard.SetDataObject("Forms");
        }
        public static void PresentationCoreCopy()
        {
            System.Windows.Clipboard.SetDataObject("PresentationCore");
        }
        public static void Win32Copy()
        {
            if (!OpenClipboard(IntPtr.Zero))
            {
                return;
            }
            EmptyClipboard();
            SetClipboardData(13, Marshal.StringToHGlobalUni("Win32"));
            CloseClipboard();
        }
    }
}

using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Configuration;
using System.IO;
using System.Text;
using System.Windows.Forms;
using System.Text.RegularExpressions;
using System.Diagnostics;
using System.Drawing;
using System.Threading;
namespace WindowsFormsApp2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            this.WindowState = FormWindowState.Normal;
        }
        private void button1_Click(object sender, EventArgs e)
        {
            MyClipboard.FormsCopy();
        }
        private void button2_Click(object sender, EventArgs e)
        {
            MyClipboard.PresentationCoreCopy();
        }
        private void button1_Click_1(object sender, EventArgs e)
        {
            MyClipboard.Win32Copy();
        }
    }
}