midiOutPrepareHeader function winmm
The midiOutPrepareHeader function prepares a MIDI system-exclusive or stream buffer for output.
MMRESULT midiOutPrepareHeader(
HMIDIOUT hmo,
LPMIDIHDR pmh,
UINT cbmh
);
Implementation
int midiOutPrepareHeader(int hmo, Pointer<MIDIHDR> pmh, int cbmh) =>
_midiOutPrepareHeader(hmo, pmh, cbmh);