以图搜图/Form1.cs

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using Masuit.Tools.Logging;
using Masuit.Tools.Media;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Processing;
using System.Collections.Concurrent;
using System.Diagnostics;
using System.Text;
using System.Text.Json;
using System.Text.RegularExpressions;
using Masuit.Tools.Files.FileDetector;
using Masuit.Tools.Systems;
using Image = SixLabors.ImageSharp.Image;
using ImageFormat = System.Drawing.Imaging.ImageFormat;
using System.Runtime.InteropServices;

namespace 以图搜图
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            CheckForIllegalCrossThreadCalls = false;
        }

        private void btnDirectory_Click(object sender, EventArgs e)
        {
            using var dialog = new FolderBrowserDialog();
            var result = dialog.ShowDialog();
            if (result == DialogResult.OK)
            {
                txtDirectory.Text = dialog.SelectedPath;
            }
        }

        private void btnPic_Click(object sender, EventArgs e)
        {
            using var dialog = new OpenFileDialog();
            if (dialog.ShowDialog() == DialogResult.OK)
            {
                txtPic.Text = dialog.FileName;
            }
        }

        private ConcurrentDictionary<string, ulong[]> _index = new();

        public bool IndexRunning { get; set; }

        private async void btnIndex_Click(object sender, EventArgs e)
        {
            if (IndexRunning)
            {
                IndexRunning = false;
                btnIndex.Text = "更新索引";
                return;
            }

            if (string.IsNullOrEmpty(txtDirectory.Text))
            {
                MessageBox.Show("请先选择文件夹");