---
title: virtualMIDICableCount
framework: audiotoolbox
role: symbol
role_heading: Instance Property
path: audiotoolbox/auaudiounit/virtualmidicablecount
---

# virtualMIDICableCount

The number of virtual MIDI cables implemented by a music device or effect.

## Declaration

```swift
var virtualMIDICableCount: Int { get }
```

## Discussion

Discussion A music device or effect can support up to 256 virtual MIDI cables of input.

## See Also

### Managing MIDI Events

- [isMusicDeviceOrEffect](audiotoolbox/auaudiounit/ismusicdeviceoreffect.md)
- [scheduleMIDIEventBlock](audiotoolbox/auaudiounit/schedulemidieventblock.md)
- [midiOutputEventBlock](audiotoolbox/auaudiounit/midioutputeventblock.md)
- [midiOutputNames](audiotoolbox/auaudiounit/midioutputnames.md)
- [AUScheduleMIDIEventBlock](audiotoolbox/auschedulemidieventblock.md)
- [AUMIDIOutputEventBlock](audiotoolbox/aumidioutputeventblock.md)