Cahnging Textarea Text Color

I'm sure I posted this question before but I'm damned if I can find it so here goes.

In my prog people can search through an array for matching text, the contents of the array cell that matched their search is displayed, what I need to do is highlight the matched text in another color from the rest of the text.

How is this done?

Try here - FormatTextAreaText().

OK, now tell me how to do this to a TextField and I'm set...

You can't.