title: external image on flash not loading into bitmap
body: <p>I had an answer before and it was very helpful, thus I modified my code to make it work,however, I'm still in square-1</p>
  
  <pre><code>//load libs
  import flash.net.*;
  import flash.geom.Matrix;
  import flash.display.*;
  import flash.events.*;
  import com.adobe.images.JPGEncoder;
  
  function myLoader() {
      var loader:Loader = new Loader();
      loader.contentLoaderInfo.addEventListener(Event.COMPLETE, sketch);
  
      var request:URLRequest = new URLRequest("http://www.sergiorodriguez.org/images/2008_5_FXD_VividBlack.jpg");
      loader.load(request);
  }
  
  //action for mouse 
  stage.addEventListener(MouseEvent.MOUSE_MOVE, moveCursor);
  Mouse.hide();
  
  function moveCursor(event:MouseEvent):void{
      pencil.x = event.stageX;
      pencil.y = event.stageY;
  }
  
  
  var canvas_mc;
      canvas_mc = new MovieClip()
  
  addChildAt(canvas_mc,0);
  canvas_mc.swapDepths
  
  //draw area to sketch
  function sketch(e:Event):void{
      //load bitmap and draw it to memory
      var myBitmapData;
          myBitmapData = new BitmapData(500, 500);
          myBitmapData.draw(e);
  
      //define matrix
      var matrix;
          matrix = new flash.geom.Matrix();
  
      //start canvas
      canvas_mc.graphics.beginBitmapFill(myBitmapData,matrix, true, true);
      canvas_mc.graphics.drawRect(0, 0, 500, 500);
      canvas_mc.graphics.endFill();
  
      //listening  events
      canvas_mc.addEventListener(MouseEvent.MOUSE_DOWN, startDrawing);
      canvas_mc.addEventListener(MouseEvent.MOUSE_UP, stopDrawing);
      canvas_mc.addEventListener(MouseEvent.MOUSE_MOVE, makeLine);    
  }       
  
  //mouse draws on press
  function startDrawing(event:MouseEvent):void{   
      canvas_mc.graphics.lineStyle(1, 0, 1);
      canvas_mc.graphics.moveTo(mouseX, mouseY);
      canvas_mc.addEventListener(MouseEvent.MOUSE_MOVE, makeLine);
  }
  
  //mouse stops drawing on realese
  function stopDrawing(event:MouseEvent):void{
      canvas_mc.removeEventListener(MouseEvent.MOUSE_MOVE, makeLine);
  }
  
  //creates lines
  function makeLine(event:MouseEvent):void{
      canvas_mc.graphics.lineTo(mouseX, mouseY);  
  }
  
  //call function
  myLoader()
  
  //start to save onto server
  var serverPath:String = "";
  function createJPG(m:MovieClip, q:Number, fileName:String){
      var jpgSource:BitmapData = new BitmapData (m.width, m.height);
      jpgSource.draw(m);
      var jpgEncoder:JPGEncoder = new JPGEncoder(q);
      var jpgStream:ByteArray = jpgEncoder.encode(jpgSource);
      var header:URLRequestHeader = new URLRequestHeader ("Content-type", "application/octet-stream");
      var jpgURLRequest:URLRequest = new URLRequest ( serverPath+"jpg_encoder_download.php?name=" + fileName + ".jpg");       
      jpgURLRequest.requestHeaders.push(header);              
      jpgURLRequest.method = URLRequestMethod.POST;               
      jpgURLRequest.data = jpgStream;
  
      var jpgURLLoader:URLLoader = new URLLoader();   
      //jpgURLLoader.load(jpgURLRequest);     
      navigateToURL(jpgURLRequest, "_blank");
  }
  
  save_btn.addEventListener(MouseEvent.CLICK, saveBtnPress);
  save_btn.addEventListener(MouseEvent.ROLL_OVER, saveBtnOver);
  save_btn.addEventListener(MouseEvent.ROLL_OUT, saveBtnOut);
  
  function saveBtnPress(e:Event):void{    
  createJPG(canvas_mc, 90, "sketch");
  }
  
  function saveBtnOver(e:Event):void{ 
      Mouse.show();
      pencil.visible = false;
  }
  
  function saveBtnOut(e:Event):void{  
      Mouse.hide();
      pencil.visible = true;
  }
  </code></pre>