Flash / Flex / ActionScript/TextField/Scroll

Responding to Scroll Events

   <source lang="java">

package {

 import flash.display.Sprite;
 import flash.text.TextField;
 import flash.events.Event;
 public class Main extends Sprite {
   public function Main(  ) {
     var field:TextField = new TextField(  );
     field.autoSize = flash.text.TextFieldAutoSize.LEFT;
     field.text = "AAA BBB CCC DDD AAA BBB CCC DDD AAA BBB CCC DDD AAA BBB CCC DDD";

     field.addEventListener(Event.SCROLL, onTextScroll);
     addChild(field);
   }
   private function onTextScroll(event:Event):void {
     trace("scroll");
   }
 }

}

       </source>
   
  

Scrolling Text Programmatically

   <source lang="java">

package {

 import flash.display.Sprite;
 import flash.text.TextField;
 public class Main extends Sprite {
   public function Main(  ) {
     var field:TextField = new TextField(  );
  
       field.scrollV = 1;   // Scroll to the top
       field.scrollV += 1;  // Scroll to the next line
       field.scrollV = 6;   // Scroll to line 6
       
       field.autoSize = flash.text.TextFieldAutoSize.LEFT;
       field.wordWrap = true;
       field.text = "AAA BBB CCC DDD AAA BBB CCC DDD AAA BBB CCC DDD AAA BBB CCC DDD";
       addChild(field);
   }
 }

}

       </source>
   
  

Set horizontal scroll value

   <source lang="java">

package {

 import flash.display.Sprite;
 import flash.text.TextField;
 public class Main extends Sprite {
   public function Main(  ) {
       var field:TextField = new TextField(  );
                      
       field.scrollH = 0;                      // Scroll to the far left
       field.scrollH += 1;                     // Scroll to the right 1 pixel
       field.scrollH = field.maxScrollH;       // Scroll to the far right
       
       field.autoSize = flash.text.TextFieldAutoSize.LEFT;
       field.wordWrap = true;
       field.text = "AAA BBB CCC DDD AAA BBB CCC DDD AAA BBB CCC DDD AAA BBB CCC DDD";
       addChild(field);
   }
 }

}

       </source>
   
  

Set the scroll related properties

   <source lang="java">

package {

 import flash.display.Sprite;
 import flash.text.TextField;
 public class Main extends Sprite {
   public function Main(  ) {
     var field:TextField = new TextField(  );
 
       field.scrollV = field.bottomScrollV;
       field.scrollV = field.bottomScrollV + 1;
       
       field.autoSize = flash.text.TextFieldAutoSize.LEFT;
       field.wordWrap = true;
       field.text = "AAA BBB CCC DDD AAA BBB CCC DDD AAA BBB CCC DDD AAA BBB CCC DDD";
       addChild(field);
   }
 }

}

       </source>
   
  

Using the Scroll Properties

   <source lang="java">

package { import flash.text.TextField; import flash.events.MouseEvent; import flash.display.Sprite; public class Main extends Sprite {

   private var txt:TextField;
   
   public function Main()
   {
       txt = new TextField();
       txt.multiline = true;
       txt.wordWrap = true;
       txt.text = "Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text ";
           txt.height = 100
           txt.width = 50;
           addChild(txt);
           txt.addEventListener(MouseEvent.MOUSE_MOVE, scrollTextField);
       }
   
       private function scrollTextField(mouseEvent:MouseEvent):void
       {
           if (mouseEvent.stageY < 30)
           {
               txt.scrollV--;
           }
   
           if (mouseEvent.stageY > 70)
           {
               txt.scrollV++;
           }
       }
   }

}

       </source>