try support for native isFlipped usage and coalesce update rects into bounding box by default

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73264 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/cocoa/statbox.mm

@@ -73,7 +73,9 @@ wxWidgetImplType* wxWidgetImpl::CreateGroupBox( wxWindowMac* wxpeer,
     NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
     wxNSBox* v = [[wxNSBox alloc] initWithFrame:r];
     wxStaticBoxCocoaImpl* c = new wxStaticBoxCocoaImpl( wxpeer, v );
+#if !wxOSX_USE_NATIVE_FLIPPED
     c->SetFlipped(false);
+#endif
     return c;
 }