Index: src/ch/DirTreeCtrl.h
===================================================================
diff -u -N -r4fe995b304ea342b50293f92d3c1992b43b820f7 -r8068e0c351055554340ac9755d1bc846893bf2b8
--- src/ch/DirTreeCtrl.h	(.../DirTreeCtrl.h)	(revision 4fe995b304ea342b50293f92d3c1992b43b820f7)
+++ src/ch/DirTreeCtrl.h	(.../DirTreeCtrl.h)	(revision 8068e0c351055554340ac9755d1bc846893bf2b8)
@@ -86,8 +86,8 @@
 	LPSHELLFOLDER lpsf;				// this shell folder (always exists)
 	LPITEMIDLIST lpiidl;			// this item id list relative to desktop (always exists)
 			
-	LPSHELLFOLDER lpsfParent;		// parent shell folder (may be NULL)
-	LPITEMIDLIST lpiidlRelative;	// this item id list relative to the parent's lpsf (may be NULL)
+	LPSHELLFOLDER lpsfParent;		// parent shell folder (may be nullptr)
+	LPITEMIDLIST lpiidlRelative;	// this item id list relative to the parent's lpsf (may be nullptr)
 };
 
 class CDirTreeCtrl : public CTreeCtrl