enable work w/o a study

diff --git a/src/BLSURFPlugin/BLSURFPlugin_BLSURF.cxx b/src/BLSURFPlugin/BLSURFPlugin_BLSURF.cxx
index 2ba902cb7f0f149dfba2bda64819e42fc370a46b..08b552151903f86e28285efa673df4c4ada5e51d 100644 (file)
--- a/src/BLSURFPlugin/BLSURFPlugin_BLSURF.cxx
+++ b/src/BLSURFPlugin/BLSURFPlugin_BLSURF.cxx
@@ -255,7 +255,7 @@ BLSURFPlugin_BLSURF::BLSURFPlugin_BLSURF(int hypId, int studyId,
 
   myStudy = NULL;
   myStudy = aStudyMgr->GetStudyByID(_studyId);
-  if (myStudy)
+  if ( !myStudy->_is_nil() )
     MESSAGE("myStudy->StudyId() = " << myStudy->StudyId());
 
   /* Initialize the Python interpreter */