C# 如何采集摄像头的视频

文件：VedioCapture2.cs：using System;using System.Runtime.InteropServices;namespace Wuyin.ShoesManager{/// <summary>/// VedioCapture 的摘要说明。/// </summary>public class VedioCapture{private int hCaptureM;private bool isUnLoad = false;public VedioCapture(){}[DllImport("avicap32.dll")]private static extern int capCreateCaptureWindow( string strWindowName, int dwStyle, int x, int y ,int width, int height , int hwdParent, int nID );[DllImport("user32.dll")]private static extern int SendMessage( int hwnd , int wMsg, int wParam , int lParam );[DllImport("user32.dll")]private static extern int SendMessage( int hwnd , int wMsg, int wParam , string lParam );[DllImport("Kernel32.dll")]private static extern bool CloseHandle( int hObject );public bool Initialize( System.Windows.Forms.Control aContainer , int intWidth, int intHeight ){hCaptureM = capCreateCaptureWindow( "", 0x40000000 | 0x10000000, 0,0,intWidth,intHeight,aContainer.Handle.ToInt32() ,1 );if( hCaptureM == 0 ) return false;int ret = SendMessage( hCaptureM , 1034, 0,0 );if( ret == 0 ){CloseHandle(hCaptureM);return false;}//WM_CAP_SET_PREVIEWret = SendMessage( hCaptureM, 1074, 1, 0 );if( ret == 0 ){this.UnLoad();return false;}//WM_CAP_SET_SCALEret = SendMessage( hCaptureM, 1077, 1, 0 );if( ret == 0 ){this.UnLoad();return false;}//WM_CAP_SET_PREVIEWRATEret = SendMessage( hCaptureM, 1076, 66, 0 );if( ret == 0 ){this.UnLoad();return false;}return true;}public void SingleFrameBegin(){//int ret = SendMessage( hCaptureM, 1094 , 0, 0 );}public void SingleFrameEnd(){//int ret = SendMessage( hCaptureM, 1095 , 0, 0 );}public void SingleFrameMode(){//WM_CAP_GRAB_FRAMEint ret = SendMessage( hCaptureM, 1084 , 0, 0 );//WM_CAP_SET_PREVIEW//int ret = SendMessage( hCaptureM, 1074 , 0, 0 );//WM_CAP_SINGLE_FRAME//ret = SendMessage( hCaptureM, 1096 , 0, 0 );}public void PreviewMode(){int ret = SendMessage( hCaptureM, 1074 , 1, 0 );}public void UnLoad(){int ret = SendMessage( hCaptureM, 1035, 0, 0 );CloseHandle( this.hCaptureM );isUnLoad = true;}public void CopyToClipBorad(){int ret = SendMessage( hCaptureM, 1054, 0, 0 );}public void ShowFormatDialog(){int ret = SendMessage( hCaptureM, 1065, 0, 0 );}public void SaveToDIB( string fileName ){int ret = SendMessage( hCaptureM, 1049, 0, fileName );}public void ShowDisplayDialog(){int ret = SendMessage( hCaptureM, 1067, 0, 0 );}public System.Drawing.Image getCaptureImage(){System.Windows.Forms.IDataObject iData = System.Windows.Forms.Clipboard.GetDataObject();System.Drawing.Image retImage = null;if( iData != null ){if( iData.GetDataPresent( System.Windows.Forms.DataFormats.Bitmap ) ){retImage = (System.Drawing.Image)iData.GetData( System.Windows.Forms.DataFormats.Bitmap );}else if( iData.GetDataPresent( System.Windows.Forms.DataFormats.Dib ) ){retImage = (System.Drawing.Image)iData.GetData( System.Windows.Forms.DataFormats.Dib );}}return retImage;}~VedioCapture(){if( !isUnLoad ){this.UnLoad();}}}}窗体的cs：using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.Runtime.InteropServices;using webcam;using Wuyin.ShoesManager;using PickHead;namespace sxt{/// <summary>/// 摄像头采集保存照片程序。/// VedioCapture.cs和VedioCapture2.cs是两种不同的摄像头采集代码。/// 本程序用的是VedioCapture2.cs的方法，注释掉的部分是用VedioCapture.cs的方法/// [e-mail]/// 2005年3月28日/// </summary>public class Form1 : System.Windows.Forms.Form{private System.Windows.Forms.Button b_play;private System.Windows.Forms.Panel panelPreview;/// <summary>/// 必需的设计器变量。/// </summary>private System.ComponentModel.Container components = null;private System.Windows.Forms.Button b_stop;private System.Windows.Forms.Button b_close;private System.Windows.Forms.Button b_getpic;private System.Windows.Forms.PictureBox pictureBox1;WebCamera wc;private System.Windows.Forms.SaveFileDialog saveFileDialog1;VedioCapture xxx=new VedioCapture();private System.Windows.Forms.TextBox t_out;int savefiles;private System.Windows.Forms.Button b_save;private System.Windows.Forms.Button b_savepic;private System.Windows.Forms.Button button1;string filepath;public Form1(){//// Windows 窗体设计器支持所必需的//InitializeComponent();//// TODO: 在 InitializeComponent 调用后添加任何构造函数代码//}/// <summary>/// 清理所有正在使用的资源。/// </summary>protected override void Dispose( bool disposing ){if( disposing ){if (components != null){components.Dispose();}}base.Dispose( disposing );}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要使用代码编辑器修改/// 此方法的内容。/// </summary>private void InitializeComponent(){System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));this.b_play = new System.Windows.Forms.Button();this.b_stop = new System.Windows.Forms.Button();this.panelPreview = new System.Windows.Forms.Panel();this.b_close = new System.Windows.Forms.Button();this.b_getpic = new System.Windows.Forms.Button();this.pictureBox1 = new System.Windows.Forms.PictureBox();this.b_save = new System.Windows.Forms.Button();this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();this.t_out = new System.Windows.Forms.TextBox();this.b_savepic = new System.Windows.Forms.Button();this.button1 = new System.Windows.Forms.Button();this.SuspendLayout();//// b_play//this.b_play.Enabled = false;this.b_play.Location = new System.Drawing.Point(8, 312);this.b_play.Name = "b_play";this.b_play.TabIndex = 0;this.b_play.Text = "&Play";this.b_play.Click += new System.EventHandler(this.b_play_Click);//// b_stop//this.b_stop.Location = new System.Drawing.Point(96, 312);this.b_stop.Name = "b_stop";this.b_stop.TabIndex = 1;this.b_stop.Text = "&Stop";this.b_stop.Click += new System.EventHandler(this.b_stop_Click);//// panelPreview//this.panelPreview.Location = new System.Drawing.Point(8, 8);this.panelPreview.Name = "panelPreview";this.panelPreview.Size = new System.Drawing.Size(352, 288);this.panelPreview.TabIndex = 2;//// b_close//this.b_close.Location = new System.Drawing.Point(648, 312);this.b_close.Name = "b_close";this.b_close.TabIndex = 3;this.b_close.Text = "&Close";this.b_close.Click += new System.EventHandler(this.b_close_Click);//// b_getpic//this.b_getpic.Location = new System.Drawing.Point(184, 312);this.b_getpic.Name = "b_getpic";this.b_getpic.TabIndex = 5;this.b_getpic.Text = "&GetPic";this.b_getpic.Click += new System.EventHandler(this.b_getpic_Click);//// pictureBox1//this.pictureBox1.Location = new System.Drawing.Point(376, 8);this.pictureBox1.Name = "pictureBox1";this.pictureBox1.Size = new System.Drawing.Size(352, 288);this.pictureBox1.TabIndex = 6;this.pictureBox1.TabStop = false;//// b_save//this.b_save.Location = new System.Drawing.Point(360, 312);this.b_save.Name = "b_save";this.b_save.TabIndex = 7;this.b_save.Text = "S&ave";this.b_save.Click += new System.EventHandler(this.b_save_Click);//// saveFileDialog1//this.saveFileDialog1.FileName = "shipin.jpg";this.saveFileDialog1.Filter = "jpg files (*.jpg)|*.jpg|All files (*.*)|*.*";this.saveFileDialog1.RestoreDirectory = true;this.saveFileDialog1.Title = "保存文件";//// t_out//this.t_out.BackColor = System.Drawing.SystemColors.InactiveBorder;this.t_out.ForeColor = System.Drawing.SystemColors.WindowText;this.t_out.Location = new System.Drawing.Point(8, 344);this.t_out.Name = "t_out";this.t_out.Size = new System.Drawing.Size(712, 21);this.t_out.TabIndex = 8;this.t_out.Text = "";//// b_savepic//this.b_savepic.Enabled = false;this.b_savepic.Location = new System.Drawing.Point(272, 312);this.b_savepic.Name = "b_savepic";this.b_savepic.TabIndex = 9;this.b_savepic.Text = "Sa&vePic";this.b_savepic.Click += new System.EventHandler(this.b_savepic_Click);//// button1//this.button1.Location = new System.Drawing.Point(448, 312);this.button1.Name = "button1";this.button1.TabIndex = 10;this.button1.Text = "button1";//// Form1//this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);this.ClientSize = new System.Drawing.Size(744, 373);this.Controls.Add(this.button1);this.Controls.Add(this.b_savepic);this.Controls.Add(this.t_out);this.Controls.Add(this.b_save);this.Controls.Add(this.pictureBox1);this.Controls.Add(this.b_getpic);this.Controls.Add(this.b_close);this.Controls.Add(this.panelPreview);this.Controls.Add(this.b_stop);this.Controls.Add(this.b_play);this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));this.MaximizeBox = false;this.Name = "Form1";this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;this.Text = "我的摄像头";this.Load += new System.EventHandler(this.Form1_Load);this.ResumeLayout(false);}#endregionTop回复人：int64(@163.com：所有的程序员都应该团结起来！) ( 五级(中级)) 信誉：100 2007-3-16 14:46:13 得分:0? /// <summary>/// 应用程序的主入口点。/// </summary>[STAThread]static void Main(){Application.Run(new Form1());}private void Form1_Load(object sender, System.EventArgs e){savefiles=1;filepath="";//VedioCapture2.cs的方法xxx.Initialize( panelPreview,panelPreview.Width,panelPreview.Height);//VedioCapture.cs的方法/*wc = new WebCamera( panelPreview.Handle,panelPreview.Width,panelPreview.Height);wc.StartWebCam();*/}private void b_play_Click(object sender, System.EventArgs e){xxx.Initialize( panelPreview,panelPreview.Width,panelPreview.Height);panelPreview.Visible=true;b_play.Enabled = false;b_stop.Enabled = true;this.b_savepic.Enabled=false;this.b_save.Enabled=true;this.b_getpic.Enabled=true;this.t_out.Text="成功获取视频！";/*wc = new WebCamera( panelPreview.Handle,panelPreview.Width,panelPreview.Height);wc.StartWebCam();*/}private void b_stop_Click(object sender, System.EventArgs e){xxx.UnLoad();panelPreview.Visible=false;b_play.Enabled = true;b_stop.Enabled = false;this.b_save.Enabled=false;this.b_savepic.Enabled=false;this.b_getpic.Enabled=false;this.t_out.Text="停止获取视频！";/* wc.CloseWebcam();*/}private void b_close_Click(object sender, System.EventArgs e){this.Close();}private void b_getpic_Click(object sender, System.EventArgs e){this.t_out.Text="";xxx.CopyToClipBorad();this.pictureBox1.Image = xxx.getCaptureImage();this.b_savepic.Enabled=true;this.t_out.Text="获取图片成功！";}private void b_savepic_Click(object sender, System.EventArgs e){this.t_out.Text="";string filename;if(filepath==""){filename="图片"+System.DateTime.Now.Date.ToShortDateString();this.saveFileDialog1.FileName=filename;if(saveFileDialog1.ShowDialog() == DialogResult.OK)filepath=this.saveFileDialog1.FileName;elsereturn;}filename="";if(savefiles<10)filename+="_00"+savefiles.ToString();else if(savefiles<100)filename+="_0"+savefiles.ToString();elsefilename+="_"+savefiles.ToString();int leg=filepath.Length;filename=filepath.Substring(0,leg-4)+filename+filepath.Substring(leg-4,4);this.pictureBox1.Image.Save(filename);this.t_out.Text="保存图片“"+filename+"”成功！";if(savefiles%2==0)this.t_out.ForeColor=Color.Red;elsethis.t_out.ForeColor=Color.Blue;savefiles++;}private void b_save_Click(object sender, System.EventArgs e){this.t_out.Text="";xxx.CopyToClipBorad();this.pictureBox1.Image = xxx.getCaptureImage();this.t_out.Text="获取图片成功！";string filename;if(filepath==""){filename="图片"+System.DateTime.Now.Date.ToShortDateString();this.saveFileDialog1.FileName=filename;if(saveFileDialog1.ShowDialog() == DialogResult.OK)filepath=this.saveFileDialog1.FileName;elsereturn;}filename="";if(savefiles<10)filename+="_00"+savefiles.ToString();else if(savefiles<100)filename+="_0"+savefiles.ToString();elsefilename+="_"+savefiles.ToString();int leg=filepath.Length;filename=filepath.Substring(0,leg-4)+filename+filepath.Substring(leg-4,4);this.pictureBox1.Image.Save(filename);this.t_out.Text="保存图片“"+filename+"”成功！";if(savefiles%2==0)this.t_out.ForeColor=Color.Red;elsethis.t_out.ForeColor=Color.Blue;savefiles++;}}}