调取本机摄像头拍照 要引用 bin debug下目录下的5个文件
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using AForge;
using AForge.Controls;
using AForge.Imaging;
using AForge.Video;
using AForge.Video.DirectShow;
namespace 人脸识别
{
public partial class Form1 : Form
{
private FilterInfoCollection videoDevices;
public int selectedDeviceIndex = 0;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
try
{
// 枚举所有视频输入设备
videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (videoDevices.Count == 0)
throw new ApplicationException();
foreach (FilterInfo device in videoDevices)
{
comboBox1.Items.Add(device.Name);
}
//下拉框用来更换摄像头
comboBox1.SelectedIndex = 0;
}
catch (ApplicationException)
{
comboBox1.Items.Add("未发现摄像头");
comboBox1.SelectedIndex = 0;
videoDevices = null;
}
}
private void button2_Click(object sender, EventArgs e)
{
if (videoSourcePlayer1 != null && videoSourcePlayer1.IsRunning)
{
videoSourcePlayer1.SignalToStop();
videoSourcePlayer1.WaitForStop();
}
}
private void button1_Click(object sender, EventArgs e)
{
button2_Click(null, null);
if (comboBox1.SelectedItem.ToString() == "未发现摄像头")
{
MessageBox.Show("未发现摄像头", "错误提示", MessageBoxButtons.OK, MessageBoxIcon.Hand);
return;
}
VideoCaptureDevice videoSource = new VideoCaptureDevice(videoDevices[comboBox1.SelectedIndex].MonikerString);
videoSource.VideoResolution = videoSource.VideoCapabilities[comboBox1.SelectedIndex];
videoSourcePlayer1.VideoSource = videoSource;
videoSourcePlayer1.Start();
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
if (comboBox1.SelectedItem.ToString() == "未发现摄像头")
{
comboBox2.Items.Add("未发现摄像头");
comboBox2.SelectedIndex = 0;
return;
}
VideoCaptureDevice videoSource = new VideoCaptureDevice(videoDevices[comboBox1.SelectedIndex].MonikerString);
if (videoSource.VideoCapabilities.Count() == 0)
{
comboBox2.Items.Add("摄像头异常");
comboBox2.SelectedIndex = 0;
return;
}
comboBox2.Items.Clear();
foreach (AForge.Video.DirectShow.VideoCapabilities FBL in videoSource.VideoCapabilities)
{
comboBox2.Items.Add(FBL.FrameSize.Width "*" FBL.FrameSize.Height);
}
comboBox2.SelectedIndex = 0;
button1_Click(null, null);
}
private void button3_Click(object sender, EventArgs e)
{
if (videoSourcePlayer1.VideoSource == null)
return;
Bitmap bitmap = videoSourcePlayer1.GetCurrentVideoFrame();
string fileName = DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss-ff") ".jpg";
bitmap.Save(Application.StartupPath @"\Picture\" fileName, ImageFormat.Jpeg);
bitmap.Dispose();
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (videoSourcePlayer1 != null && videoSourcePlayer1.IsRunning)
{
videoSourcePlayer1.SignalToStop();
videoSourcePlayer1.WaitForStop();
}
}
private void btnClose_Click(object sender, EventArgs e)
{
Application.Exit();
}
}
}
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