. Created a dedicated thread with message loop (#570)
HookFilter dll: Only call GetKeyState() if keycode is ESC (instead of every time)
DebuggerCursorUpdate(): reduce sleep from 10ms to 1ms
. Also suppress ALT+SPACE
. PostMessage to AppleWin message-pump for WM_KEYDOWN, WM_KEYUP for these special key combos
. Add special any-key-down (AKD) handling for these special key combos