[PATCH 2/3] mmsystem: Do not rewrite input parameters.

[Joerg-Cyril.Hoehle at t-systems.com]

Hi,

MMTIME is output only
dwUser is what the name says, not Wine's business
dwLoops is not modified by Wine, etc.

another time I'll talk about dwOffset in wine-devel

@@ -1288,24 +1274,11 @@ UINT16 WINAPI waveOutPrepareHeader16(HWAVEOUT16 hWaveOut,      /* [in] */
-    if ((result = MMSYSTDRV_Message(HWAVEOUT_32(hWaveOut), WODM_PREPARE, lpsegWaveOutHdr,
-                                    uSize)) != MMSYSERR_NOTSUPPORTED)
There's no such code in Wine's winmm/waveform.c

It may be something left from the time when the individual drivers were answering WODM_PREPARE
and I remember reading that lazy drivers are allowed to answer UNSUPPORTED and have winmm perform default
handling and return NOERROR.  OTOH, isn't this the case for the ACM drivers only?

Regards,
 Jörg Höhle
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