fixing unused param warning

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60007 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/carbon/window.cpp

@@ -822,8 +822,13 @@ pascal void wxMacLiveScrollbarActionProc( ControlRef control , ControlPartCode p
 }
 wxMAC_DEFINE_PROC_GETTER( ControlActionUPP , wxMacLiveScrollbarActionProc ) ;
 
-wxWidgetImplType* wxWidgetImpl::CreateUserPane( wxWindowMac* wxpeer, wxWindowMac* parent, wxWindowID id, const wxPoint& pos, const wxSize& size,
-                            long style, long extraStyle)
+wxWidgetImplType* wxWidgetImpl::CreateUserPane( wxWindowMac* wxpeer, 
+                            wxWindowMac* WXUNUSED(parent), 
+                            wxWindowID WXUNUSED(id), 
+                            const wxPoint& pos, 
+                            const wxSize& size,
+                            long WXUNUSED(style), 
+                            long WXUNUSED(extraStyle))
 {
     OSStatus err = noErr;
     Rect bounds = wxMacGetBoundsForControl( wxpeer , pos , size ) ;