more fixes to compilation warnings from HP-UX build log. About 30% more to go

<sigh>


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5259 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/msgdlgg.h

@@ -38,9 +38,9 @@ public:
     void OnCancel(wxCommandEvent& event);
 
 private:
-    int     m_dialogStyle;
+    long m_dialogStyle;
 
-DECLARE_EVENT_TABLE()
+    DECLARE_EVENT_TABLE()
 };
 
 #if !defined( __WXMSW__ ) && !defined( __WXMAC__) && !defined(__WXPM__)