Re: [PATCH v4 0/1] MR10581: winealsa.drv: Simulate blocking calls midiOutLongMsg.

[Akihiro Sagawa (＠sgwaki)]

On Wed Apr  8 12:06:41 2026 +0000, Steven Don wrote:
> That is correct. The corresponding `snd_rawmidi_drain()` in the Rawmidi
> API would work, but Wine does not use the Rawmidi API, but the Sequencer
> API. When using the sequencer, `snd_seq_ev_set_direct()` marks the SysEx
> data for immediate out of band delivery (which is indeed preferable for
> SysEx data) bypassing the output queue, but that also means
> `snd_seq_drain_output()` and `snd_seq_sync_output_queue()` are ineffective.
> For what it's worth, I also tried disabling the set-direct call and
> adding the drain and sync calls, but there was no observable change in behaviour.
> Thanks for the explanation, I understand now.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/10581#note_135482