How to get a Task that uses SynchronizationContext? And how are SynchronizationContext used anyway?

Question

I am still learning the whole Task-concept and TPL. From my current understanding, the SynchronizationContext functions (if present) are used by await to dispat

Answer 1

How can I obtain a Task, that actually runs an action but is dispatched using SynchronizationContext.Current.Send/Post?

Use special task scheduler:

Task.Factory.StartNew(
    () => {}, // this will use current synchronization context
    CancellationToken.None, 
    TaskCreationOptions.None, 
    TaskScheduler.FromCurrentSynchronizationContext());

And can anyone recommend a good introduction into SynchronizationContext

Look at the article It's All About the SynchronizationContext by Stephen Cleary.