substitute '@b NB:' with '@note'; first partial revision of e*h headers; replace @beginEventTable with @beginEventTable{1} which provides the prototype of the event handler

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52900 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/dynlib.h

@@ -140,7 +140,7 @@ public:
         This function returns a valid handle for the main program itself. Notice that
         the @NULL return value is valid for some systems (i.e. doesn't mean that
         the function failed).
-        @b NB: This function is Unix specific. It will always fail under Windows
+        @note This function is Unix specific. It will always fail under Windows
         or OS/2.
     */
     wxDllType GetProgramHandle();