added missing include after last commit

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39440 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/msw/helpbest.h b/include/wx/msw/helpbest.h
index b62979af4d0dc278ae11853e66f34e32788c18b5..3552d9d5aac77abfd13dc01b0f83835747dd928b 100644 (file)
--- a/include/wx/msw/helpbest.h
+++ b/include/wx/msw/helpbest.h
@@ -16,6 +16,7 @@
     && wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
 
 #include "wx/helpbase.h"
+#include "wx/html/helpfrm.h"        // for wxHF_DEFAULT_STYLE
 
 class WXDLLIMPEXP_HTML wxBestHelpController: public wxHelpControllerBase
 {