winmm: flag return patch

[Robert Reif]

Return flag for DRVM_MAPPER_PREFERRED_GET.
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Index: dlls/winmm/lolvldrv.c
===================================================================
RCS file: /home/wine/wine/dlls/winmm/lolvldrv.c,v
retrieving revision 1.62
diff -u -r1.62 lolvldrv.c
--- dlls/winmm/lolvldrv.c	1 Dec 2004 15:32:19 -0000	1.62
+++ dlls/winmm/lolvldrv.c	17 Dec 2004 14:55:07 -0000
@@ -504,6 +504,7 @@
     case DRVM_MAPPER_PREFERRED_GET:
 	/* FIXME: get from registry someday */
         *((LPDWORD)dwParam1) = -1;      /* No preferred device */
+        *((LPDWORD)dwParam2) = 0;
         break;
 
     case DRV_QUERYDEVICEINTERFACE: