flash内嵌于C#程序中的应用

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。