User Guide

882 Chapter 2: ActionScript Language Reference
TextField.bottomScroll
Availability
Flash Player 6.
Usage
my_txt.bottomScroll:Number
Description
Read-only property; an integer (one-based index) that indicates the bottommost line that is
currently visible in
my_txt. Think of the text field as a “window” onto a block of text. The
property TextField.scroll is the one-based index of the topmost visible line in the window.
All the text between lines
TextField.scroll and TextField.bottomScroll is currently visible
in the text field.
Example
The following example creates a text field and fills it with text. The scroll and bottomScroll
properties for the text field are then traced for the
comment_txt field.
this.createTextField("comment_txt", this.getNextHighestDepth(), 0, 0, 160,
120);
comment_txt.html = true;
comment_txt.selectable = true;
comment_txt.multiline = true;
comment_txt.wordWrap = true;
comment_txt.htmlText = "<b>What is hexadecimal?</b><br>The hexadecimal color
system uses six digits to represent color values. Each digit has sixteen
possible values or characters. The characters range from 0 to 9 and then A to
F. Black is represented by (#000000) and white, at the opposite end of the
color system, is (#FFFFFF).";
my_btn.onRelease = function() {
trace("scroll: "+comment_txt.scroll);
trace("bottomScroll: "+comment_txt.bottomScroll);
};