Code to record a screencast in MacOS

Question

I need to write a tool that records screen activity on a MacOS desktop and creates a video of it.

I'm aware that there are multiple tools available that do this already - yet I need an implementation of my own for various reasons.

As the issue is a very broad one I will break it down into the following:

a) What technologies/skills would I need - programming language (Object C?), graphics API ... ?

b) How could I encode the video properly (e.g. Ogg Theora/H.264)?

If anyone knows about open source tools and/or tutorials covering this topic (only for MacOS!) please let me know!

Answer 1

Check out the following sample code from Apple: http://developer.apple.com/mac/library/samplecode/OpenGLScreenCapture/ It demonstrate the basics of screen grabbing and movie generation.