INT PAL 0022812: TC6.4.0: prefernces work only for a new study (edited)

diff --git a/src/SalomeApp/SalomeApp_Application.cxx b/src/SalomeApp/SalomeApp_Application.cxx
index 04b1eb2cf4cc4353e97f3c3999781254a4fab5c6..95465cd4dc788db4b39384b56ba6fc96999931a8 100644 (file)
--- a/src/SalomeApp/SalomeApp_Application.cxx
+++ b/src/SalomeApp/SalomeApp_Application.cxx
@@ -1041,7 +1041,9 @@ void SalomeApp_Application::onLocalCheckIn()
 void SalomeApp_Application::onDockWindowVisibilityChanged( bool theIsVisible )
 {
   LightApp_Application::onDockWindowVisibilityChanged( theIsVisible );
-  QAction* send = (QAction*)sender();
+  QAction* send = ::qobject_cast<QAction*>( sender() );
+  if ( !send )
+    return;
   QString aWinName = send->data().toString();
   if ( theIsVisible && aWinName == "objectBrowser" )
     objectBrowserColumnsVisibility();