C# 如何调用笔记本摄像头

草言 2012-12-07 04:54:17

我用avicap32.dll，但是不出图像，黑色一块，貌似有人说这个dll只支持有驱动的报像头，不支持即插即用摄像头，也不知道是真是假，请问如何才能控制笔记本自带集成的摄像头！高手指教！

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一零一二 2012-12-07

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看看AForge.NET,其中专门有video模块！下面代码是一个测试的窗体，没注释，不好意思！ AForge.NET一个专门为开发者和研究者基于C#框架设计的，这个框架提供了不同的类库和关于类库的资源，还有很多应用程序例子，包括计算机视觉与人工智能，图像处理，神经网络，遗传算法，机器学习，机器人等领域。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using DevExpress.XtraEditors;
using AForge.Video;
using AForge.Video.DirectShow;
using System.Runtime.InteropServices;
namespace Demo_jq
{
    public partial class VideoForm : DevExpress.XtraEditors.XtraForm
    {
        FilterInfoCollection videoDevices;
         //处理窗体的移动
        [DllImport("User32.dll")]
        public static extern bool ReleaseCapture();
        [DllImport("User32.dll")]
        public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
        //API中用到的常量
        const int WM_SYSCOMMAND = 0x0112;
        const int SC_MOVE = 0xf010;
        const int HTCAPTION = 0x0002;
        public VideoForm()
        {
            InitializeComponent();
        }

        private void VideoForm_Load(object sender, EventArgs e)
        {
            videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
        

            VideoCaptureDevice videoSource1 = new VideoCaptureDevice(videoDevices[0].MonikerString);
            videoSource1.DesiredFrameRate = 100;

            videoSourcePlayer1.VideoSource = videoSource1;
            videoSourcePlayer1.Start();
       
        }

        private void VideoForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            videoSourcePlayer1.SignalToStop();
            videoSourcePlayer1.WaitForStop();
            this.Dispose();
        }

        private void videoSourcePlayer1_MouseDown(object sender, MouseEventArgs e)
        {
              ReleaseCapture();
            SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);
        }

        private void VideoForm_MouseDown(object sender, MouseEventArgs e)
        {
             ReleaseCapture();
            SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);
        }

      
    }
}

changjiangk 2012-12-07