+/* values for window scaling */
+#define WINDOW_SCALING_NOT_AVAILABLE FALSE
+#define WINDOW_SCALING_AVAILABLE TRUE
+
+#define MIN_WINDOW_SCALING_PERCENT 50
+#define STD_WINDOW_SCALING_PERCENT 100
+#define MAX_WINDOW_SCALING_PERCENT 300
+#define STEP_WINDOW_SCALING_PERCENT 10
+