include: Add some multimedia defines not present in win9x.
diff --git a/include/mmddk.h b/include/mmddk.h
index 826aefb..d3593b0 100644
--- a/include/mmddk.h
+++ b/include/mmddk.h
@@ -376,6 +376,9 @@
 #define MCI_RECT                7
 #define MCI_CONSTANT            8
 #define MCI_END_CONSTANT        9
+#define MCI_HWND                10
+#define MCI_HPAL                11
+#define MCI_HDC                 12
 
 #define MAKEMCIRESOURCE(wRet, wRes) MAKELRESULT((wRet), (wRes))