Add M401 - Wait for user on LCD button press

[marlin.git] / Marlin / ultralcd.h

diff --git a/Marlin/ultralcd.h b/Marlin/ultralcd.h
index b01368bc14d843cab116b6f8345199a8e83470c3..c3bc94b7306ce9864f948840180007c7c00b0b29 100644 (file)
--- a/Marlin/ultralcd.h
+++ b/Marlin/ultralcd.h
@@ -13,6 +13,7 @@
   #define LCD_UPDATE_INTERVAL 100
   #define STATUSTIMEOUT 15000
   extern LiquidCrystal lcd;
+  extern volatile char buttons=0;  //the last checked buttons in a bit array.
   
   #ifdef NEWPANEL
     #define EN_C (1<<BLEN_C)