midiInUnprepareHeader function winmm
Cleans up the preparation performed by the midiInPrepareHeader function.
To learn more, see learn.microsoft.com/windows/win32/api/mmeapi/nf-mmeapi-midiinunprepareheader.
Implementation
@pragma('vm:prefer-inline')
int midiInUnprepareHeader(HMIDIIN hmi, Pointer<MIDIHDR> pmh, int cbmh) =>
_midiInUnprepareHeader(hmi, pmh, cbmh);