BlazingStars is an attempt to provide an OS X alternative to Windows AutoHotKey programs that interface with online poker clients like PokerStars.
The code is written entirely in Objective-C and Cocoa. Image manipulation and screen scraping are done with ImageMagick and the Tesseract-OCR engine, which are both open-source projects.
If you would like to download and test the most bleeding edge version of BlazingStars, take a look at the DebugBuilds page.