We want to handle menu (and toolbar) events in the active MDI child before
handling them in the parent frame itself and the existing code achieved this
by forwarding wxEVT_MENU events at wx event processing level to the active
child. However this was not enough as the underlying MSW WM_COMMAND message
was still sent to the parent frame only and this could result in wx event not
being generated at all if the parent frame had a disabled menu item with the
same ID as (an enabled) item in the child frame, see #14314.
So forward WM_COMMAND directly to ensure that the correct window gets the
event in the first place. And this makes wxEVT_MENU forwarding in TryBefore()
unnecessary.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73927 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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