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
FreeTextBox(版本3.1.6)在ASP.Net 2.0中使用方法
.NET 常用功能和代码小结
在 .NET Framework 2.0 中未处理的异常导致基于 ASP.NET 的应用程序意外退出
asp.net IList查询数据后格式化数据再绑定控件
asp.net sql存储过程
asp.net 简单实现禁用或启用页面中的某一类型的控件
asp.net(c#)获取内容第一张图片地址的函数
The remote procedure call failed and did not execute的解决办法
ASP.NET 在线文件管理
asp.net 读取并修改config文件实现代码
ASP.NET Cookie 操作实现
asp.net Silverlight中的模式窗体
Silverlight中动态获取Web Service地址
asp.net Silverlight应用程序中获取载体aspx页面参数
asp.net 水晶报表隔行换色实现方法
asp.net 获取Gridview隐藏列的值
手动把asp.net的类生成dll文件的方法
asp.net 使用ObjectDataSource控件在ASP.NET中实现Ajax真分页
动态指定任意类型的ObjectDataSource对象的查询参数
asp.net Md5的用法小结

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: 54 ::
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;