当前位置: 首页 > 图文教程 > 网络编程 > ASP.NET > .Net里一个用于驱动摄像头的类

ASP.NET
在ASP.NET中操作文件的例子(VB)
用ASP.NET动态生成图像(转1)
用ASP.NET动态生成图像(转2)
关于如何读取别人的网站使用NGWS NET classes
在ASP.NET中处理datetime的一些通用函数(VB)
.NET之ASP Web Application快速入门(1)
.NET之ASP Web Application快速入门(2)
.NET之ASP Web Application快速入门(3)
.NET之ASP Web Application快速入门(4)
.NET之ASP Web Application快速入门(5)
用DataList 控制元件开发的一个简单的留言本程序
如何使用C#访问POP3服务器
用ado+来删除数据
.NET真面目(上)
.NET真面目(下)
用asp.net编写的上传程序
用C#与XML创建动态分层菜单
开始 .Net的旅程(一)
用ASP.Net写一个发送ICQ信息的程序
用ASP.Net编写的查询域名的程序

ASP.NET 中的 .Net里一个用于驱动摄像头的类


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 274 ::
收藏到网摘: n/a

本文是借助avicap32.dll库来驱动摄像头。做到了抓图、录像功能。


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

  namespace using System;
  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;