学步园

flash player是以一个com+组件的形式插入到C#应用程序中的. 加入的方法和普通com+控件一样.这是我今年2月做的一个小试验。事实上我上半年做的项目一直跟这方面有关，所以对这方面还是有一些经验的。现在由于公司项目的启动，所以要对这个熟悉一下，然后整以成熟的方法，使它们之间的接口更有通用性。这方面有一个开源项目flashCsharp做得还不错。但他只是对文件控制不错，扩展性不是很强。这个小试验是一个媒体播放器，由flash来控制，先熟悉一下。　　

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace mediaplay
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private AxWMPLib.AxWindowsMediaPlayer axWindowsMediaPlayer1;
		private AxShockwaveFlashObjects.AxShockwaveFlash axShockwaveFlash1;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
			axShockwaveFlash1.Movie=Application.StartupPath+"//videoControlButtons.swf";
			axWindowsMediaPlayer1.URL=Application.StartupPath+"//movie.avi";
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
			this.axWindowsMediaPlayer1 = new AxWMPLib.AxWindowsMediaPlayer();
			this.axShockwaveFlash1 = new AxShockwaveFlashObjects.AxShockwaveFlash();
			((System.ComponentModel.ISupportInitialize)(this.axWindowsMediaPlayer1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.axShockwaveFlash1)).BeginInit();
			this.SuspendLayout();
			// 
			// axWindowsMediaPlayer1
			// 
			this.axWindowsMediaPlayer1.Anchor = System.Windows.Forms.AnchorStyles.Top;
			this.axWindowsMediaPlayer1.Enabled = true;
			this.axWindowsMediaPlayer1.Location = new System.Drawing.Point(4, 1);
			this.axWindowsMediaPlayer1.Name = "axWindowsMediaPlayer1";
			this.axWindowsMediaPlayer1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axWindowsMediaPlayer1.OcxState")));
			this.axWindowsMediaPlayer1.Size = new System.Drawing.Size(312, 248);
			this.axWindowsMediaPlayer1.TabIndex = 0;
			this.axWindowsMediaPlayer1.Enter += new System.EventHandler(this.axWindowsMediaPlayer1_Enter);
			// 
			// axShockwaveFlash1
			// 
			this.axShockwaveFlash1.Anchor = System.Windows.Forms.AnchorStyles.Bottom;
			this.axShockwaveFlash1.Enabled = true;
			this.axShockwaveFlash1.Location = new System.Drawing.Point(9, 255);
			this.axShockwaveFlash1.Name = "axShockwaveFlash1";
			this.axShockwaveFlash1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axShockwaveFlash1.OcxState")));
			this.axShockwaveFlash1.Size = new System.Drawing.Size(300, 150);
			this.axShockwaveFlash1.TabIndex = 1;
			this.axShockwaveFlash1.FSCommand += new AxShockwaveFlashObjects._IShockwaveFlashEvents_FSCommandEventHandler(this.axShockwaveFlash1_FSCommand);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(320, 398);
			this.Controls.Add(this.axShockwaveFlash1);
			this.Controls.Add(this.axWindowsMediaPlayer1);
			this.Name = "Form1";
			this.Text = "Form1";
			((System.ComponentModel.ISupportInitialize)(this.axWindowsMediaPlayer1)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.axShockwaveFlash1)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void axShockwaveFlash1_FSCommand(object sender, AxShockwaveFlashObjects._IShockwaveFlashEvents_FSCommandEvent e)
		{
			switch(e.command)
			{
				case "pause":
						{ 
							axWindowsMediaPlayer1.Ctlcontrols.pause();
						}
					break;
				case "play":axWindowsMediaPlayer1.Ctlcontrols.play();
					break;
				case "fullscr":axWindowsMediaPlayer1.fullScreen=true;
					break;
				case "close":Application.Exit();
					break;
				default:
					break;
			}
		
		}


		private void axWindowsMediaPlayer1_Enter(object sender, System.EventArgs e)
		{
		}
	}
}

flash是通过fscommand命令来控制的，　fscommand在flash中的格式是fscommand(commandname,arg)。使用了这个命令就会在C#应用程序中产生一个fscommand事件.通过一个EventHandler来处理。
this.axShockwaveFlash1.FSCommand += new AxShockwaveFlashObjects._IShockwaveFlashEvents_FSCommandEventHandler(this.axShockwaveFlash1_FSCommand);

而C#中也可以向flash设置参数，如:

string flashData = "一二三四五六七"; 
axShockwaveFlash1.SetVariable("data",flashData);

这样的话可以在flash中通过Obejct.watch()得到变化。