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
asp.net下用服务器端代码解决浏览器兼容性问题
asp.net 安全的截取指定长度的html或者ubb字符串
asp.net 在线编辑word文档 可保存到服务器
asp.net 提高网站速度及如何利用缓存
asp.net 修改/删除站内目录操作后Session丢失问题
asp.net URL重写简化版 速学URL重写
asp.net EncryptHelper 加密帮助类
asp.net JSONHelper JSON帮助类
C# 调用存储过程简单完整的实例代码
vs2008 安装失败的总结与分享
HttpHandler HttpModule入门篇
ASP.NET(AJAX+JSON)实现对象调用
Asp.net 基于Cookie简易的权限判断
asp.net通过HttpModule自动在Url地址上添加参数
asp.net 字符串、二进制、编码数组转换函数
ASP.NET操作Excel备忘录
记录游客页面访问IP的简易实现代码 (asp.net+txt)
比较简单的将数据信息导入wrod文档方案(C# for word)
增加asp.net应用程序性能的20种方法(简单有效)
ASP.NET 图片防盗链的实现原理分析

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: 45 ::
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;