Extra WM_MOUSEMOVE messages erroneously sent during WM_L/R/MBUTTONDOWN and similar messages. The following test apps should show the problem:
- test_events: GUI app showing mouse events. You need also to consult your debug log (or use DebugView on windows) to see the list of sent messages, and compare to what happens on ReactOS.
- test_console_events_mouse: Do the same, on console.
Source codes are provided (Visual C++ 2010)