exposing generic system option define, adding missing event.Skip() to OnChar, and tweaking handling of scrollbars.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44067 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mac/carbon/listctrl.h

@@ -15,6 +15,8 @@
 #include "wx/defs.h"
 #include "wx/generic/listctrl.h"
 
+#define wxMAC_ALWAYS_USE_GENERIC_LISTCTRL wxT("mac.listctrl.always_use_generic")
+
 class wxMacDataBrowserListCtrlControl;
 class wxMacListControl;
 class wxListCtrlTextCtrlWrapper;