打开电脑摄像头拍照

可以搜素本机摄像头，并呈现图像，实现拍照功能

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using AForge.Video.DirectShow;

namespace WindowsFormsApp27
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }
        private FilterInfoCollection videodevices;
        private VideoCaptureDevice Source;
        private int indexf = 0;

        private void Form1_Load（object sender EventArgs e）
        {

        }
        private void Camlist（）
        {
            videodevices = new FilterInfoCollection（FilterCategory.VideoInputDevice）;

            if （videodevices.Count == 0）
            {
             

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-10-31 11:37  WindowsFormsApp27\
     目录           0  2018-10-31 11:37  WindowsFormsApp27\.vs\
     目录           0  2018-10-31 11:37  WindowsFormsApp27\.vs\WindowsFormsApp27\
     目录           0  2018-10-31 11:37  WindowsFormsApp27\.vs\WindowsFormsApp27\v15\
     文件       61952  2019-04-17 09:32  WindowsFormsApp27\.vs\WindowsFormsApp27\v15\.suo
     目录           0  2018-10-31 11:37  WindowsFormsApp27\.vs\WindowsFormsApp27\v15\Server\
     目录           0  2018-10-31 11:37  WindowsFormsApp27\.vs\WindowsFormsApp27\v15\Server\sqlite3\
     文件           0  2018-10-31 10:56  WindowsFormsApp27\.vs\WindowsFormsApp27\v15\Server\sqlite3\db.lock
     文件      729088  2019-04-17 09:29  WindowsFormsApp27\.vs\WindowsFormsApp27\v15\Server\sqlite3\storage.ide
     文件       32768  2019-04-17 09:28  WindowsFormsApp27\.vs\WindowsFormsApp27\v15\Server\sqlite3\storage.ide-shm
     文件     4132392  2019-04-17 09:32  WindowsFormsApp27\.vs\WindowsFormsApp27\v15\Server\sqlite3\storage.ide-wal
     目录           0  2019-04-17 09:30  WindowsFormsApp27\WindowsFormsApp27\
     文件        5838  2018-10-31 11:27  WindowsFormsApp27\WindowsFormsApp27\Form1.Designer.cs
     文件        2671  2019-04-17 09:30  WindowsFormsApp27\WindowsFormsApp27\Form1.cs
     文件        5817  2018-10-31 11:27  WindowsFormsApp27\WindowsFormsApp27\Form1.resx
     文件         498  2018-10-31 10:56  WindowsFormsApp27\WindowsFormsApp27\Program.cs
     目录           0  2018-10-31 11:37  WindowsFormsApp27\WindowsFormsApp27\Properties\
     文件        1332  2018-10-31 10:56  WindowsFormsApp27\WindowsFormsApp27\Properties\AssemblyInfo.cs
     文件        2847  2018-10-31 10:56  WindowsFormsApp27\WindowsFormsApp27\Properties\Resources.Designer.cs
     文件        5612  2018-10-31 10:56  WindowsFormsApp27\WindowsFormsApp27\Properties\Resources.resx
     文件        1104  2018-10-31 10:56  WindowsFormsApp27\WindowsFormsApp27\Properties\Settings.Designer.cs
     文件         249  2018-10-31 10:56  WindowsFormsApp27\WindowsFormsApp27\Properties\Settings.settings
     文件        7252  2018-10-31 11:18  WindowsFormsApp27\WindowsFormsApp27\WindowsFormsApp27.csproj
     目录           0  2018-10-31 11:37  WindowsFormsApp27\WindowsFormsApp27\bin\
     目录           0  2018-10-31 11:37  WindowsFormsApp27\WindowsFormsApp27\bin\Debug\
     文件       44544  2013-07-15 23:04  WindowsFormsApp27\WindowsFormsApp27\bin\Debug\AForge.Controls.dll
     文件       66108  2013-07-15 23:04  WindowsFormsApp27\WindowsFormsApp27\bin\Debug\AForge.Controls.xml
     文件       20480  2013-07-15 23:07  WindowsFormsApp27\WindowsFormsApp27\bin\Debug\AForge.DebuggerVisualizers （2010）.dll
     文件       15872  2013-07-15 23:04  WindowsFormsApp27\WindowsFormsApp27\bin\Debug\AForge.Fuzzy.dll
     文件       80837  2013-07-15 23:04  WindowsFormsApp27\WindowsFormsApp27\bin\Debug\AForge.Fuzzy.xml
     文件       25600  2013-07-15 23:04  WindowsFormsApp27\WindowsFormsApp27\bin\Debug\AForge.Genetic.dll
............此处省略53个文件信息