fix memory leak of FrameSite (see #3935)

[wxWidgets.git] / include / wx / msw / helpwin.h

diff --git a/include/wx/msw/helpwin.h b/include/wx/msw/helpwin.h
index 2bb07163950c843dabe200a59db0fe4e466dae03..5af4f824e0beeefdc6ec3bb39460cade2a47c8e8 100644 (file)
--- a/include/wx/msw/helpwin.h
+++ b/include/wx/msw/helpwin.h
@@ -18,13 +18,13 @@
 
 #include "wx/helpbase.h"
 
-class WXDLLEXPORT wxWinHelpController: public wxHelpControllerBase
+class WXDLLIMPEXP_CORE wxWinHelpController: public wxHelpControllerBase
 {
     DECLARE_CLASS(wxWinHelpController)
 
 public:
     wxWinHelpController(wxWindow* parentWindow = NULL): wxHelpControllerBase(parentWindow) {}
-    ~wxWinHelpController() {}
+    virtual ~wxWinHelpController() {}
 
     // Must call this to set the filename
     virtual bool Initialize(const wxString& file);