-#define GDI_X 2
-#define GDI_Y 3
-#define GDI_WIDTH 4
-#define GDI_HEIGHT 5
-#define GDI_TYPE 6
-#define GDI_STATE 7
-#define GDI_CHECKED 8
-#define GDI_RADIO_NR 9
-#define GDI_NUMBER_VALUE 10
-#define GDI_NUMBER_MIN 11
-#define GDI_NUMBER_MAX 12
-#define GDI_TEXT_VALUE 13
-#define GDI_TEXT_SIZE 14
-#define GDI_DESIGN_UNPRESSED 15
-#define GDI_DESIGN_PRESSED 16
-#define GDI_ALT_DESIGN_UNPRESSED 17
-#define GDI_ALT_DESIGN_PRESSED 18
-#define GDI_DESIGN_BORDER 19
-#define GDI_DECORATION_DESIGN 20
+#define GDI_CUSTOM_TYPE_ID 2
+#define GDI_X 3
+#define GDI_Y 4
+#define GDI_WIDTH 5
+#define GDI_HEIGHT 6
+#define GDI_TYPE 7
+#define GDI_STATE 8
+#define GDI_CHECKED 9
+#define GDI_RADIO_NR 10
+#define GDI_NUMBER_VALUE 11
+#define GDI_NUMBER_MIN 12
+#define GDI_NUMBER_MAX 13
+#define GDI_TEXT_VALUE 14
+#define GDI_TEXT_SIZE 15
+#define GDI_DESIGN_UNPRESSED 16
+#define GDI_DESIGN_PRESSED 17
+#define GDI_ALT_DESIGN_UNPRESSED 18
+#define GDI_ALT_DESIGN_PRESSED 19
+#define GDI_DESIGN_BORDER 20
+#define GDI_DECORATION_DESIGN 21