IDirectMusicPerformance::MIDIToMusic

The IDirectMusicPerformance::MIDIToMusic method converts a MIDI note value to a DirectMusic music value, using a supplied chord, subchord level, and play mode.

HRESULT MIDIToMusic(
  BYTE bMIDIValue,
  DMUS_CHORD_KEY* pChord,
  BYTE bPlayMode,
  BYTE bChordLevel,
  WORD *pwMusicValue
); 

Parameters

bMIDIValue

MIDI note value to convert, in the range from 0 through 127.

pChord

Address of a DMUS_CHORD_KEY structure containing information about the chord and key structure to be used in translating the note. This includes the underlying scale. For example, if the chord is a CM7, the note is interpreted against the chord positions for root note C, chord intervals of a major seventh. The structure carries up to eight parallel subchords, with chord intervals, root, scale, and inversion flags for each. It also carries the overall key root.

bPlayMode

Play mode determining how the music value is derived from the chord. For a list of values, see DMUS_PLAYMODE_FLAGS.

bChordLevel

Subchord level, defining which subchords can be used. See DMUS_SUBCHORD.

pwMusicValue

Address of a variable to receive the music value. For information on this value, see DMUS_NOTE_PMSG.

Return Values

If the method succeeds, the return value is one of the following. See Remarks.

If it fails, the method can return one of the following error values:

Remarks

If the method fails, *pwMusicValue is not changed.

If the return value is DMUS_S_UP_OCTAVE or DMUS_DOWN_OCTAVE, the note conversion generated a note value that is less than 0 or greater than 127, so it has been bumped up or down one or more octaves to be in the proper MIDI range of from 0 through 127. This can occur when using play modes DMUS_PLAYMODE_FIXEDTOCHORD and DMUS_PLAYMODE_FIXEDTOKEY, both of which return MIDI values in *pwMusicValue.

Requirements

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
  Header: Declared in dmusici.h.

See Also

IDirectMusicPerformance::MusicToMIDI, Music Values and MIDI Notes