fix remaining cases of wxWindow::ProcessEvent() calls; add convenient ProcessWindowEvent() wrapper and document it; also document this (incompatible) change itself

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58480 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/mdig.cpp

@@ -372,7 +372,7 @@ bool wxGenericMDIParentFrame::ProcessEvent(wxEvent& event)
             m_childHandler = m_currentChild;
             wxON_BLOCK_EXIT_NULL(m_childHandler);
 
-            if ( m_currentChild->ProcessEvent(event) )
+            if ( m_currentChild->ProcessWindowEvent(event) )
                 return true;
         }
     }