[Bug 18220] mWavEdit: midi sysex communication fails

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=18220


Jörg Höhle <hoehle at users.sourceforge.net> changed:

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                 CC|                            |hoehle at users.sourceforge.ne
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--- Comment #4 from Jörg Höhle <hoehle at users.sourceforge.net>  2010-01-28 04:00:52 ---
>No idea why that limit is there.
Perhaps http://msdn.microsoft.com/en-us/library/dd798477%28VS.85%29.aspx
 "A stream buffer cannot be larger than 64K" => INVALPARAM
(which is about midiOutPrepareHeader, while midiInPrepareHeaders says nothing
like this).

Now somebody needs to do additional testing to determine when/how
midiIn/OutPrepareHeader may return INVALPARAM for buffers >64K and when not,
i.e. how to detect a stream buffer.
I can add some tests to my emerging MIDI testsuite.

BTW, for comparison I'd like to see a +midi,+winmm,+driver application log with
Lauri's hack that permits a larger buffer size.

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