1 files changed, 7 insertions, 0 deletions
diff --git a/core/mp_common.h b/core/mp_common.h
index 6736a08a18..62c314d95b 100644
--- a/core/mp_common.h
+++ b/core/mp_common.h
@@ -33,6 +33,13 @@
 
 #define ROUND(x) ((int)((x) < 0 ? (x) - 0.5 : (x) + 0.5))
 
+#define CONTROL_OK 1
+#define CONTROL_TRUE 1
+#define CONTROL_FALSE 0
+#define CONTROL_UNKNOWN -1
+#define CONTROL_ERROR -2
+#define CONTROL_NA -3
+
 extern const char *mplayer_version;
 extern const char *mplayer_builddate;