midiOutLongMsg function winmm
Sends a system-exclusive MIDI message to the specified MIDI output device.
To learn more, see learn.microsoft.com/windows/win32/api/mmeapi/nf-mmeapi-midioutlongmsg.
Implementation
@pragma('vm:prefer-inline')
int midiOutLongMsg(HMIDIOUT hmo, Pointer<MIDIHDR> pmh, int cbmh) =>
_midiOutLongMsg(hmo, pmh, cbmh);