+#ifndef SS_SUNKEN
+ #define SS_SUNKEN 0x00001000L
+#endif
+
+// unsupported flags for WINDOWPOS structure
+#ifndef SWP_NOCOPYBITS
+ #define SWP_NOCOPYBITS 0
+#endif
+
+#ifndef SWP_NOOWNERZORDER
+ #define SWP_NOOWNERZORDER 0
+#endif
+
+#ifndef SWP_NOSENDCHANGING
+ #define SWP_NOSENDCHANGING 0
+#endif
+