Problem with event processing on win32 -- hang when moving app window

[oviano]

I needed to do something similar, I outlined my solution in this thread:

Game running too fast after windows moved

While dragging the window or after the window regains a lost focus, the action is running too fast for a moment (ca. 1 second). It’s as if SDL wants to catch up the lost time. See the video. No movement = while i am dragging the window. Why this effect and how to get rid of it?