LoginSystem/Form1.cs

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using Accord.Imaging.Filters;
using Accord.Vision.Detection;
using Accord.Vision.Detection.Cascades;
using AForge.Imaging.Filters;
using AForge.Video;
using AForge.Video.DirectShow;
using ExternalClass;
using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace LoginSystem
{
    public partial class Form1 : Form
    {
        #region 隐藏/显示 菜单栏
        private const int SW_HIDE = 0;  //隐藏任务栏
        private const int SW_RESTORE = 9;//显示任务栏
        [DllImport("user32.dll")]
        public static extern int ShowWindow(int hwnd, int nCmdShow);
        [DllImport("user32.dll")]
        public static extern int FindWindow(string lpClassName, string lpWindowName);
        #endregion


        System.Threading.Thread KillThr;

        private FilterInfoCollection cameras; //连接到电脑的摄像头采集
        private VideoCaptureDevice device; //目前所选择的设备（相机）
        private Dictionary<string, string> cameraDict = new Dictionary<string, string>();

        public Form1()
        {

            InitializeComponent();
            Control.CheckForIllegalCrossThreadCalls = false;
            this.cameras = new FilterInfoCollection(AForge.Video.DirectShow.FilterCategory.VideoInputDevice);
            int i = 1;
            int count = cameras.Count;
            foreach (FilterInfo camera in this.cameras)
            {
                if (!this.cameraDict.ContainsKey(camera.Name))
                    this.cameraDict.Add(camera.Name, camera.MonikerString);
                else
                {
                    this.cameraDict.Add(camera.Name + "-" + i.ToString(), camera.MonikerString);
                    i++;
                }
            }
            this.cb_Devices.DataSource = new List<string>(cameraDict.Keys); //结合相机的名字组合框  --列出可用摄像头列表