接口版本大头贴Flash部分代码分析

//导入类库文件 
import flash.external.*; 
import flash.display.BitmapData; 
…… …… 
  
//初始化函数块 
function Initial() 
{ 
         //取得摄像头对象 
         var cam:Camera = Camera.get(); 
         _root.camer2_mc._visible=false; 
 //判定摄像头是否可用 
       if (cam == null) 
      { 
          _global.ok=false; 
       //将错误信息框移入当前区域      
       errornocamera_mc._x=37; 
       errornocamera_mc._y=23; 
          jdt._visible =false; 
          //返回函数（初始化失败时回调） 
       ExternalInterface.call("Inifail"); 
       }  
    else 
      { errornocamera_mc._x=300; 
       _global.ok=true; 
          my_video.attachVideo(cam); 
       jdt._visible =false; 
       jdt.indeterminate =true; 
       jdt.source =_root.xk_mc; 
       jdt.mode ="polled"; 
           
          //下面是上传进度条 
jdt2.indeterminate =false; 
       jdt2.minimum=0; 
          jdt2.mode ="manual"; 
          //返回初始化成功函数调用 
          ExternalInterface.call("Iniok"); 
         } 
     
         
 } 
   
 //Capture函数块 
 function Capture() 
 { if(_global.ok==true){ 
       _root.camer2_mc._visible=true; 
       imger.draw(my_video); 
       _root.camer2_mc.camerabox_mc.attachBitmap(imger, 1); 
    //拍照完成回调函数 
       ExternalInterface.call("Capok");    }  
 } 
 …… …… 
  
//＝＝＝＝＝＝＝＝内部函数 外部不可访问 用于对图像像素扫面 Start＝＝＝＝＝＝＝＝ 
function scanPhoto(){ 
       var pix:Number; 
       var tem:Number; 
       var pixer:String; 
       PX[thehang]=new Array(); 
       for(w=0;w<my_video._width;w++){ 
              pix=imger.getPixel(w,thehang) 
              jdt2.setProgress(t,my_video._width*my_video._height); 
              pixer=pix.toString(16); 
              t++; 
              tem=6-pixer.length; 
              trace(pixer); 
              if(tem!=0){ 
                     for (ii=0;ii<tem;ii++){pixer="0"+pixer;} 
              } 
              PX[thehang].push(pixer); 
               
       } 
       thehang +=1; 
        
       if(thehang>=my_video._height){ 
              jdt2._visible=false; 
              upbg_mc._visible=false; 
              jdt2.setProgress(0,my_video._width*my_video._height); 
              t=1; 
              clearInterval(_root.ID); 
              var sender=new LoadVars(); 
           for(i=0;i<my_video._height;i++){ 
              sender["PX"+i]=_root.PX[i]; 
       } 
//发送数据给后台处理页面 
       sender.sendAndLoad(_global.aspfilename,sender,"POST"); 
       sender.onLoad =function(success){ 
              if(success){ 
              filename =this.thisfile; 
       //上传成功后回调此函数 
              ExternalInterface.call("Upok",filename);        
           }else{ 
       //上传失败后回调此函数 
              ExternalInterface.call("Upfail");      
               
              } 
               
       } 
               
       } 
} 
//＝＝＝＝＝＝＝＝＝内部函数 外部不可访问 End＝＝＝＝＝＝＝＝＝＝＝ 
  
………… 
//此部分相当于 注册接口 告诉flash 监听 从javascript传来的对以下函数的调用 
ExternalInterface.addCallback("Showversion",this,Showversion); 
ExternalInterface.addCallback("Changepic",this,Loadpic); 
ExternalInterface.addCallback("Initial",this,Initial); 
ExternalInterface.addCallback("Uppic",this,Uppic); 
ExternalInterface.addCallback("Capture",this,Capture);