<p></p>
<p><b>@j4yk</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/OpenSmalltalk/opensmalltalk-vm/pull/588#discussion_r700467291">platforms/win32/vm/sqWin32Window.c</a>:</p>
<pre style='color:#555'>> @@ -625,6 +625,10 @@ MainWndProcW(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
   case WM_KILLFOCUS:
     fHasFocus = 0;
     return DefWindowProcW(hwnd,message,wParam,lParam);
+
+  case WM_TIMECHANGE:
+    resyncSystemTime();
+
</pre>
<p>For what it is worth, wine has no default reaction to WM_TIMECHANGE <a href="https://github.com/wine-mirror/wine/blob/master/dlls/user32/defwnd.c">https://github.com/wine-mirror/wine/blob/master/dlls/user32/defwnd.c</a></p>
<p>One might speculate whether Windows will in the future at some point have a meaningful default reaction to that message (which would speak for DefWindowProc). I doubt it will (which speaks for break).</p>
<p>But anyway I would not keep the fall-through because otherwise the next person to add a message here might overlook it and introduce unexpected behavior whenever WM_TIMECHANGE comes in.</p>

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