1. 程式人生 > >攝像頭程式設計大全 原始碼 c http //tmsoft lsxy com/index php load read i

攝像頭程式設計大全 原始碼 c http //tmsoft lsxy com/index php load read i

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using System.Runtime.InteropServices;
using System.Drawing;
using System.Drawing.Imaging;

namespace PickHead
{
/// <summary>
/// 一個控制攝像頭的類
/// </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>
/// 初始化攝像頭
/// </summary>
/// <param name="handle">控制元件的控制代碼</param>
/// <param name="left">開始顯示的左邊距</param>
/// <param name="top">開始顯示的上邊距</param>
/// <param name="width">要顯示的寬度</param>
/// <param name="height">要顯示的長度</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>
/// 開始顯示影象
/// </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>
/// 停止顯示
/// </summary>
public void Stop()
{
SendMessage(hWndC, WM_CAP_DRIVER_DISCONNECT, 0, 0);
bStat = false;
}

/// <summary>
/// 抓圖
/// </summary>
/// <param name="path">要儲存bmp檔案的路徑</param>
public void GrabImage(string path)
{

IntPtr hBmp = Marshal.StringToHGlobalAnsi(path);
SendMessage(hWndC,WM_CAP_SAVEDIB,0,hBmp.ToInt64());

}

/// <summary>
/// 錄影
/// </summary>
/// <param name="path">要儲存avi檔案的路徑</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>
/// 停止錄影
/// </summary>
public void StopKinescope()
{
SendMessage(hWndC, WM_CAP_STOP, 0, 0);
}

}
}



C#捕捉視訊頭(原始碼)    
    
  using   System;  
  using   System.Runtime.InteropServices;  
    
  namespace   Wuyin.ShoesManager  
  {  
          ///   <summary>  
          ///   VedioCapture   的摘要說明。  
          ///   </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();  
                          }  
                  }  
          }  
  }

  引用通告地址: http://tmsoft.lsxy.com/trackback.php?tbID=434&extra=45504e
             

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這裡寫圖片描述