Index: trunk/psModules/src/objects/pmSourceMasks.h
===================================================================
--- trunk/psModules/src/objects/pmSourceMasks.h	(revision 24694)
+++ trunk/psModules/src/objects/pmSourceMasks.h	(revision 29004)
@@ -39,4 +39,11 @@
 } pmSourceMode;
 
+// Bit flags to distinguish analysis results
+// When adding to or subtracting from this list, please also modify pmSourceMaskHeader
+typedef enum {
+    PM_SOURCE_MODE2_DEFAULT          = 0x00000000, ///< Initial value: resets all bits
+    PM_SOURCE_MODE2_DIFF_WITH_SINGLE = 0x00000001, ///< diff source matched to a single positive detection
+    PM_SOURCE_MODE2_DIFF_WITH_DOUBLE = 0x00000002, ///< diff source matched to positive detections in both images
+} pmSourceMode2;
 
 /// Populate header with mask values