-// Set to 0 for accurate dialog units, else 1 to be as per 2.1.16 and before.
-// If migrating between versions, your dialogs may seem to shrink.
+// MSW-only: Set to 0 for accurate dialog units, else 1 for old behaviour when
+// default system font is used for wxWindow::GetCharWidth/Height() instead of
+// the current font.