-#define GD_TYPE_RADIO_BUTTON (1 << 1)
-#define GD_TYPE_DRAWING_AREA (1 << 2)
-#define GD_TYPE_TEXTINPUT_ALPHANUMERIC (1 << 3)
-#define GD_TYPE_TEXTINPUT_NUMERIC (1 << 4)
-#define GD_TYPE_SCROLLBAR_VERTICAL (1 << 5)
-#define GD_TYPE_SCROLLBAR_HORIZONTAL (1 << 6)
+#define GD_TYPE_CHECK_BUTTON (1 << 1)
+#define GD_TYPE_RADIO_BUTTON (1 << 2)
+#define GD_TYPE_DRAWING_AREA (1 << 3)
+#define GD_TYPE_TEXTINPUT_ALPHANUMERIC (1 << 4)
+#define GD_TYPE_TEXTINPUT_NUMERIC (1 << 5)
+#define GD_TYPE_SCROLLBAR_VERTICAL (1 << 6)
+#define GD_TYPE_SCROLLBAR_HORIZONTAL (1 << 7)