guidelines - Desktop software design patterns

There are a lot of resources on the web about web applications design patterns, but only a few about desktop applications.

And this is quite strange as most of the business targeted software is (still?) desktop based.

At the same time, Apple's or Microsoft's UI guidelines are manuals of hundreds of pages, dealing with buttons width as well as air theme or icon style.

So, can you suggest me some good resource about desktop software UI patterns, informative and concrete just as Yahoo!Design Pattern Library (to name one among the many) is for webapps?

Answer

You already named the definitive sources for desktop applications for the two major operating systems. Those guidelines from Apple and Microsoft are what you should be following.