git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@27489 
c3d73ce0-8a6f-49c7-b76d-
6d57e0e08775
   double bound_x;
   double bound_y;
   this->GetBoundingBoxMin(&bound_x, &bound_y);
   double bound_x;
   double bound_y;
   this->GetBoundingBoxMin(&bound_x, &bound_y);
+  this->GetEventHandler()->OnBeginSize(bound_x, bound_y);
 
   // Choose the 'opposite corner' of the object as the stationary
   // point in case this is non-centring resizing.
 
   // Choose the 'opposite corner' of the object as the stationary
   // point in case this is non-centring resizing.