Index: reg_api.c
===================================================================
--- reg_api.c	(revision 232)
+++ reg_api.c	(revision 233)
@@ -209,6 +209,7 @@
 
 // key.c
 raydium_register_variable(&raydium_key_last,RAYDIUM_REGISTER_INT,"raydium_key_last");
+raydium_register_variable(&raydium_key_trace,RAYDIUM_REGISTER_SCHAR,"raydium_key_trace");
 raydium_register_function(C2PHP(raydium_key_pressed),"raydium_key_pressed");
 
 // mouse.c