ddraw: Return a nullpointer as lpSurface in Lock() if the rect is invalid.
[wine] / dlls / msvcrt20 /
drwxr-xr-x   ..
-rw-r--r-- 322 Makefile.in
-rw-r--r-- 1890 msvcrt20.c
-rw-r--r-- 44488 msvcrt20.spec