Creating alpha masks from text on the iPhone and MacPlease note: this article is part of the older "Objective-C era" on Cocoa with Love. I don't keep these articles up-to-date; please be wary of broken code or potentially out-of-date information. Read "A new era for Cocoa with Love" for more. Alpha masks are a powerful way to create graphical effects in your program. In this post, I'll show you how to create an alpha mask from a text string and use
