Flash MX 2004.
textRun.textAttrs
Property; the TextAttrs object containing the attributes of the run of text.
The following example displays the properties of the first run of characters in the selected text field in the Output panel.
var curTextAttrs = fl.getDocumentDOM().selection[0].textRuns[0].textAttrs;
for (var prop in curTextAttrs) {
fl.trace(prop + " = " + curTextAttrs[prop]);
}