用c#调用摄像头做录像功能

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Code:

using System.Runtime.InteropServices;
using System.Drawing;
using System.Drawing.Imaging;
using System;
namespace CamTest2
{
/// <summary>
/// 一个控制摄像头的类
/// </summary>
public class Pick
{
private const int WM_USER = 0x400;
private const int WS_CHILD = 0x40000000;
private const int WS_VISIBLE = 0x10000000;
private const int WM_CAP_START = WM_USER;
private const int WM_CAP_STOP = WM_CAP_START + 68;
private const int WM_CAP_DRIVER_CONNECT = WM_CAP_START + 10;
private const int WM_CAP_DRIVER_DISCONNECT = WM_CAP_START + 11;
private const int WM_CAP_SAVEDIB = WM_CAP_START + 25;
private const int WM_CAP_GRAB_FRAME = WM_CAP_START + 60;
private const int WM_CAP_SEQUENCE = WM_CAP_START + 62;
private const int WM_CAP_FILE_SET_CAPTURE_FILEA = WM_CAP_START + 20;
private const int WM_CAP_SEQUENCE_NOFILE = WM_CAP_START + 63;
private const int WM_CAP_SET_OVERLAY = WM_CAP_START + 51;
private const int WM_CAP_SET_PREVIEW = WM_CAP_START + 50;
private const int WM_CAP_SET_CALLBACK_VIDEOSTREAM = WM_CAP_START + 6;
private const int WM_CAP_SET_CALLBACK_ERROR = WM_CAP_START + 2;
private const int WM_CAP_SET_CALLBACK_STATUSA = WM_CAP_START + 3;
private const int WM_CAP_SET_CALLBACK_FRAME = WM_CAP_START + 5;
private const int WM_CAP_SET_SCALE = WM_CAP_START + 53;
private const int WM_CAP_SET_PREVIEWRATE = WM_CAP_START + 52;
private const int WM_CAP_DLG_VIDEOFORMAT = WM_CAP_START + 41;
private const int WM_CAP_DLG_VIDEOSOURCE = WM_CAP_START + 42;
private const int WM_CAP_DLG_VIDEODISPLAY = WM_CAP_START + 43;
private const int WM_CAP_DLG_VIDEOCOMPRESSION = WM_CAP_START + 46;
private IntPtr hWndC;
private bool bStat = false;
private IntPtr mControlPtr;
private int mWidth;
private int mHeight;
private int mLeft;
private int mTop;
/// <summary>
/// 初始化摄像头
/// </summary>
/// <param name="handle">控件的句柄</param>
/// <param name="left">开始显示的左边距</param>
/// <param name="top">开始显示的上边距</param>
/// <param name="width">要显示的宽度</param>
/// <param name="height">要显示的长度</param>
public Pick(IntPtr handle, int left, int top, int width, int height)
{
mControlPtr = handle;
mWidth = width;
mHeight = height;
mLeft = left;
mTop = top;
}
[DllImport("avicap32.dll")]
private static extern IntPtr capCreateCaptureWindowA(byte[] lpszWindowName, int dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, int nID);
[DllImport("avicap32.dll")]
private static extern int capGetVideoFormat(IntPtr hWnd, IntPtr psVideoFormat, int wSize);
[DllImport("User32.dll")]
private static extern bool SendMessage(IntPtr hWnd, int wMsg, int wParam, long lParam);
public void capDlgVideoFormat()
{
Boolean capDlgVideoFormat = SendMessage(hWndC, WM_CAP_DLG_VIDEOFORMAT, 0, 0);
}
public void capDlgVideoSource()
{
Boolean capDlgVideoSource = SendMessage(hWndC, WM_CAP_DLG_VIDEOSOURCE, 0, 0);
}
public void capDlgVideoDisplay()
{
Boolean capDlgVideoDisplay = SendMessage(hWndC, WM_CAP_DLG_VIDEODISPLAY, 0, 0);
}
public void capDlgVideoCompression()
{
Boolean capDlgVideoCompression = SendMessage(hWndC, WM_CAP_DLG_VIDEOCOMPRESSION, 0, 0);
}
/// <summary>
/// 开始显示图像
/// </summary>
public void Start()
{
if (bStat)
return;
bStat = true;
byte[] lpszName = new byte[100];
hWndC = capCreateCaptureWindowA(lpszName, WS_CHILD | WS_VISIBLE, mLeft, mTop, mWidth, mHeight, mControlPtr, 0);
if (hWndC.ToInt32() != 0)
{
SendMessage(hWndC, WM_CAP_SET_CALLBACK_VIDEOSTREAM, 0, 0);
SendMessage(hWndC, WM_CAP_SET_CALLBACK_ERROR, 0, 0);
SendMessage(hWndC, WM_CAP_SET_CALLBACK_STATUSA, 0, 0);
SendMessage(hWndC, WM_CAP_DRIVER_CONNECT, 0, 0);
SendMessage(hWndC, WM_CAP_SET_SCALE, 1, 0);
SendMessage(hWndC, WM_CAP_SET_PREVIEWRATE, 66, 0);
SendMessage(hWndC, WM_CAP_SET_OVERLAY, 1, 0);
SendMessage(hWndC, WM_CAP_SET_PREVIEW, 1, 0);
}
return;
}
/// <summary>
/// 停止显示
/// </summary>
public void Stop()
{
SendMessage(hWndC, WM_CAP_DRIVER_DISCONNECT, 0, 0);
bStat = false;
}
/// <summary>
/// 抓图
/// </summary>
/// <param name="path">要保存bmp文件的路径</param>
public void GrabImage(string path)
{
IntPtr hBmp = Marshal.StringToHGlobalAnsi(path);
SendMessage(hWndC, WM_CAP_SAVEDIB, 0, hBmp.ToInt64());
}
/// <summary>
/// 录像
/// </summary>
/// <param name="path">要保存avi文件的路径</param>
public void Kinescope(string path)
{
IntPtr hBmp = Marshal.StringToHGlobalAnsi(path);
SendMessage(hWndC, WM_CAP_FILE_SET_CAPTURE_FILEA, 0, hBmp.ToInt64());
SendMessage(hWndC, WM_CAP_SEQUENCE, 0, 0);
}
/// <summary>
/// 停止录像
/// </summary>
public void StopKinescope()
{
SendMessage(hWndC, WM_CAP_STOP, 0, 0);
}
/* public void cap()
{
CAPTUREPARMS s;
capCaptureGetSetup(m_caphwnd,&s,sizeof(CAPTUREPARMS));//取得采集参数
s.dwRequestMicroSecPerFrame = 33333;//采集一帧花费1/30秒
s.fAbortLeftMouse = FALSE;//压下鼠标左键不终止采集
s.fAbortRightMouse = FALSE;//压下鼠标右键不终止采集
s.fCaptureAudio = TRUE;//c采集音频
s.fYield = TRUE;//使用一个独立的线程来采集视频，不使用View窗口线程
capCaptureSetSetup(m_caphwnd,&s,sizeof(CAPTUREPARMS));//设定采集参数
}*/
}
}
摄像头编程大全(源码)(c#)
using System.Runtime.InteropServices;
using System.Drawing;
using System.Drawing.Imaging;
namespace PickHead
{
/// <summary>
/// 一个控制摄像头的类
/// </summary>
public class Pick
{
private const int WM_USER = 0x400;
private const int WS_CHILD = 0x40000000;
private const int WS_VISIBLE = 0x10000000;
private const int WM_CAP_START = WM_USER;
private const int WM_CAP_STOP = WM_CAP_START + 68;
private const int WM_CAP_DRIVER_CONNECT = WM_CAP_START + 10;
private const int WM_CAP_DRIVER_DISCONNECT = WM_CAP_START + 11;
private const int WM_CAP_SAVEDIB = WM_CAP_START + 25;
private const int WM_CAP_GRAB_FRAME = WM_CAP_START + 60;
private const int WM_CAP_SEQUENCE = WM_CAP_START + 62;
private const int WM_CAP_FILE_SET_CAPTURE_FILEA = WM_CAP_START + 20;
private const int WM_CAP_SEQUENCE_NOFILE =WM_CAP_START+ 63;
private const int WM_CAP_SET_OVERLAY =WM_CAP_START+ 51;
private const int WM_CAP_SET_PREVIEW =WM_CAP_START+ 50;
private const int WM_CAP_SET_CALLBACK_VIDEOSTREAM = WM_CAP_START +6;
private const int WM_CAP_SET_CALLBACK_ERROR=WM_CAP_START +2;
private const int WM_CAP_SET_CALLBACK_STATUSA= WM_CAP_START +3;
private const int WM_CAP_SET_CALLBACK_FRAME= WM_CAP_START +5;
private const int WM_CAP_SET_SCALE=WM_CAP_START+ 53;
private const int WM_CAP_SET_PREVIEWRATE=WM_CAP_START+ 52;
private IntPtr hWndC;
private bool bStat = false;
private IntPtr mControlPtr;
private int mWidth;
private int mHeight;
private int mLeft;
private int mTop;
/// <summary>
/// 初始化摄像头
/// </summary>
/// <param name="handle">控件的句柄</param>
/// <param name="left">开始显示的左边距</param>
/// <param name="top">开始显示的上边距</param>
/// <param name="width">要显示的宽度</param>
/// <param name="height">要显示的长度</param>
public Pick(IntPtr handle, int left, int top, int width,int height)
{
mControlPtr = handle;
mWidth = width;
mHeight = height;
mLeft = left;
mTop = top;
}
[DllImport("avicap32.dll")]
private static extern IntPtr capCreateCaptureWindowA(byte[] lpszWindowName, int dwStyle, int x, int y, int nWidth, int nHeight, IntPtr hWndParent, int nID);
[DllImport("avicap32.dll")]
private static extern int capGetVideoFormat(IntPtr hWnd, IntPtr psVideoFormat, int wSize );
[DllImport("User32.dll")]
private static extern bool SendMessage(IntPtr hWnd, int wMsg, int wParam, long lParam);
/// <summary>
/// 开始显示图像
/// </summary>
public void Start()
{
if (bStat)
return;
bStat = true;
byte[] lpszName = new byte[100];
hWndC = capCreateCaptureWindowA(lpszName,WS_CHILD|WS_VISIBLE ,mLeft,mTop,mWidth,mHeight,mControlPtr,0);
if (hWndC.ToInt32() != 0)
{
SendMessage(hWndC, WM_CAP_SET_CALLBACK_VIDEOSTREAM, 0, 0);
SendMessage(hWndC, WM_CAP_SET_CALLBACK_ERROR, 0, 0);
SendMessage(hWndC, WM_CAP_SET_CALLBACK_STATUSA, 0, 0);
SendMessage(hWndC, WM_CAP_DRIVER_CONNECT, 0, 0);
SendMessage(hWndC, WM_CAP_SET_SCALE, 1, 0);
SendMessage(hWndC, WM_CAP_SET_PREVIEWRATE, 66, 0);
SendMessage(hWndC, WM_CAP_SET_OVERLAY, 1, 0);
SendMessage(hWndC, WM_CAP_SET_PREVIEW, 1, 0);
}
return;
}
/// <summary>
/// 停止显示
/// </summary>
public void Stop()
{
SendMessage(hWndC, WM_CAP_DRIVER_DISCONNECT, 0, 0);
bStat = false;
}
/// <summary>
/// 抓图
/// </summary>
/// <param name="path">要保存bmp文件的路径</param>
public void GrabImage(string path)
{
IntPtr hBmp = Marshal.StringToHGlobalAnsi(path);
SendMessage(hWndC,WM_CAP_SAVEDIB,0,hBmp.ToInt64());
}
/// <summary>
/// 录像
/// </summary>
/// <param name="path">要保存avi文件的路径</param>
public void Kinescope(string path)
{
IntPtr hBmp = Marshal.StringToHGlobalAnsi(path);
SendMessage(hWndC,WM_CAP_FILE_SET_CAPTURE_FILEA,0,hBmp.ToInt64());
SendMessage(hWndC, WM_CAP_SEQUENCE, 0, 0);
}
/// <summary>
/// 停止录像
/// </summary>
public void StopKinescope()
{
SendMessage(hWndC, WM_CAP_STOP, 0, 0);
}
}
}
C#捕捉视频头（源码）
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_PREVIEW
ret = SendMessage( hCaptureM, 1074, 1, 0 );
if( ret == 0 )
{
this.UnLoad();
return false;
}
//WM_CAP_SET_SCALE
ret = SendMessage( hCaptureM, 1077, 1, 0 );
if( ret == 0 )
{
this.UnLoad();
return false;
}
//WM_CAP_SET_PREVIEWRATE
ret = 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_FRAME
int 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();
}
}
}
}