MidiPlaybackMBS.Callback as Integer

Var p as MidiPlaybackMBS
Var m as MidiPortMBS
// do something useful
m.SetCallback p.Callback, p

Return the address of the callback method used to process Midi data.
The method is to be used together with the SetCallback method in the MidiPortMBS class.

MidiPlaybackMBS.Constructor(UsesInternalReverb as boolean=false, AutoStart as boolean=true)

After calling the constructor the Inited flag is true on success.
If AutoStart is false the midi playback is not started.

MidiPlaybackMBS.CPULoad as single

Returns a short-term running average of the current CPU load of the graph.

MidiPlaybackMBS.InstrumentCount as Integer

Some examples using this method:

• /MacCF/MIDI/Midi Playback Instruments
• /MacCF/MIDI/MIDI Synth Keys
• /MacOSX/Play Keys

MidiPlaybackMBS.InstrumentID(index as Integer) as Integer

Some examples using this method:

• /MacCF/MIDI/Midi Playback Instruments
• /MacCF/MIDI/MIDI Synth Keys
• /MacOSX/Play Keys

MidiPlaybackMBS.InstrumentIDOnChannel(Channel as Integer) as Integer

(Read and Write computed property)

Some examples using this property:

• /MacCF/MIDI/MIDI Synth Keys
• /MacOSX/Play Keys

MidiPlaybackMBS.InstrumentName(index as Integer) as string

// show list of all names
Var m as new MidiPlaybackMBS

Var u as Integer = m.InstrumentCount-1
for i as Integer = 0 to u
  Listbox1.AddRow m.InstrumentName(i)
next

Index from 0 to InstrumentCount-1.

Some examples using this method:

• /MacCF/MIDI/Midi Playback Instruments
• /MacCF/MIDI/MIDI Synth Keys
• /MacCF/MIDI/MidiPlaybackMBS with reverb
• /MacOSX/Play Keys

MidiPlaybackMBS.IsRunning as boolean

Lasterror is set.

MidiPlaybackMBS.LoadSoundBankFile(file as folderitem)

Sub LoadSoundFont (SoundFontName as string)
  
  Var j as Integer
  Var f as folderitem
  Var e as string
  
  //GET SOUNDFONT
  f = Volume(0).Child("Library").Child("Audio").Child("Sounds").Child("Banks").Child(SoundFontName)
  
  if f <> Nil then
    //INSTALL SOUNDFONT
    me.LoadSoundBankFile(f)
    Window1.PopupMenu1.DeleteAllRows
    for j = 0 to 127
      if me.InstrumentName(j) <> "" then
        Window1.PopupMenu1.addrow me.InstrumentName(j)
      end if
    next
    Window1.PopupMenu1.ListIndex = 0
  else
    e = "Could not locate the SoundFont: "+ SoundFontName
    e = e + " Please make sure the file is a valid soundfont file"
    e = e + " and is located in the folder YourHardDrive/Library/Audio/Sounds/Banks"
    e = e + " and has the extension .sf2"
    MsgBox e
  end if
  
End Sub

This function can load files with .sf2 extension placed in the location: Library/Audio/Sounds/Banks.

Lasterror is set.

To avoid crashes on Mac OS X 10.5, the midi playback is stopped before loading is done and restarted if necessary after loading completed.

As a side effect stopping the midi playback may reset volume, reverb and tuning.

Some examples using this method:

• /MacCF/MIDI/MidiPlaybackMBS with reverb

MidiPlaybackMBS.MaxCPULoad as single

Returns the max CPU load of the graph since this call was last made or the graph was last started.

MidiPlaybackMBS.ReverbVolume as single

The value range is -120 to 40 dB.
(Read and Write computed property)

Some examples using this property:

• /MacCF/MIDI/MidiPlaybackMBS with reverb

MidiPlaybackMBS.SendMidiEvent(Status as Integer, Data1 as Integer, Data2 as Integer, OffsetSampleFrame as Integer)

MidiPlaybackMBS.Start

Lasterror is set.

MidiPlaybackMBS.Stop

Lasterror is set.

As a side effect stopping the midi playback may reset volume, reverb and tuning.

MidiPlaybackMBS.StreamFromDisk as boolean

Currently setting this value can crash the application.
(Read and Write computed property)

Some examples using this property:

• /MacCF/MIDI/MidiPlaybackMBS with reverb

MidiPlaybackMBS.Tuning as single

Value is in cents from -1200 to 1200.
(Read and Write computed property)

Some examples using this property:

• /MacCF/MIDI/MidiPlaybackMBS with reverb

MidiPlaybackMBS.UsesInternalReverb as boolean

Var m as new MidiPlaybackMBS

MsgBox "UsesInternalRever: "+str(m.UsesInternalReverb)
m.UsesInternalReverb=true
MsgBox "UsesInternalRever: "+str(m.UsesInternalReverb)

Lasterror is set.
(Read and Write computed property)

Some examples using this property:

• /MacCF/MIDI/MidiPlaybackMBS with reverb

MidiPlaybackMBS.Volume as single

The value is in dB from -120 to 40.
(Read and Write computed property)