Blocking your UI thread with PlaySound

posted by  varson (7)  12 months ago (blogs.msdn.com)

For better or worse, the Windows UI model ties a window to a particular thread, that has led to a programming paradigm where work is divided between "UI threads" and "I/O threads".  In order to keep your application responsive, it's critically important to not perform any blocking operations on your UI thread and instead do them on the "I/O threads".

One thing that people don't always realize is that even asynchronous APIs block.  This isn't surprising - a single processor core can only do one thing at a time (to be pedantic, the processor cores can and do more than one thi