--- /dev/null
+/* The modifiers XEmacs knows about; these appear in key and button events. */
+
+#define MOD_CONTROL (1<<0)
+#define MOD_META (1<<1)
+#define MOD_SUPER (1<<2)
+#define MOD_HYPER (1<<3)
+#define MOD_ALT (1<<4)
+#define MOD_SHIFT (1<<5) /* not used for dual-case characters */