added contrast control function for gLCDs

2013-07-14 15:28:26 +07:00
parent 99b7e926e7
commit e509cdbeb0
7 changed files with 98 additions and 6 deletions
--- a/Marlin/ultralcd.h
+++ b/Marlin/ultralcd.h
@ -11,7 +11,12 @@
  void lcd_setstatuspgm(const char* message);
  void lcd_setalertstatuspgm(const char* message);
  void lcd_reset_alert_level();
-  
+
+#ifdef DOGLCD
+  extern int lcd_contrast;
+  void lcd_setcontrast(uint8_t value);
+#endif
+
  static unsigned char blink = 0;	// Variable for visualisation of fan rotation in GLCD

  #define LCD_MESSAGEPGM(x) lcd_setstatuspgm(PSTR(x))