可以获取的是onChanged和onScroller事件，我们结合昨天的部分程序写一个例子：

Movieclip.prototype.makeBox = function(x, y, l) {

this.lineto(x, y+l);

this.lineto(x+l, y+l);

this.lineto(x+l, y);

this.lineto(x, y);

};

createEmptyMovieClip("scrollUp",3);

with (scrollUp) {

lineStyle(1,0x999999,50);

moveTo(550,200);

beginFill(0x345678,20);

makeBox(550,200,30);

endfill();

}

duplicateMovieClip(scrollUp, "scrolldown", 4);

scrollUp._y-=60;

scrollUp.onPress=function(){txt.scroll--};

scrollDown.onPress=function(){txt.scroll++};

createTextField("txt",5,300,10,100,40);

txt.border=1;

txt.wordwrap=1;

txt.multiline=1;

txt.type="input";

lsn5 = new Object();

lsn5.onScroller = function () {trace("text scrolling") };

lsn5.onChanged = function () {trace("text changed") };

txt.addListener(lsn5);

当文本超过最大长度的时候或者用户按下了scroll按钮的时候并且没有超过最高/最低scroll范围的时候取得onScroller响应；而用户输入文本的时候响应onChanged事件。