1 files changed, 4 insertions, 0 deletions
diff --git a/openbox/client.h b/openbox/client.h
index 1e801dc4..172d4caf 100644
--- a/openbox/client.h
+++ b/openbox/client.h
@@ -9,6 +9,10 @@
 struct Frame;
 struct Group;
 
+/* The value in client.transient_for indicating it is a transient for its
+   group instead of for a single window */
+#define TRAN_GROUP ((void*)~0l)
+
 /*! Holds an icon in ARGB format */
 typedef struct Icon {
     unsigned long width, height;