--- a/Plugins/Samples/Common/DicomPath.cpp	Thu May 23 12:06:26 2019 +0200
+++ b/Plugins/Samples/Common/DicomPath.cpp	Tue May 28 07:33:10 2019 +0200
@@ -50,6 +50,19 @@
   }
 
 
+  DicomPath::Prefix& DicomPath::GetPrefixItem(size_t depth)
+  {
+    if (depth >= prefix_.size())
+    {
+      ORTHANC_PLUGINS_THROW_EXCEPTION(ParameterOutOfRange);
+    }
+    else
+    {
+      return prefix_[depth];
+    }
+  }
+
+
   DicomPath::DicomPath(const DicomTag& sequence,
                        size_t index,
                        const DicomTag& tag) :