---
title: "withUnsafeMutableMIDIEventListPointer(_:)"
framework: coremidi
role: symbol
role_heading: Instance Method
path: "coremidi/midieventlist/builder/withunsafemutablemidieventlistpointer(_:)"
---

# withUnsafeMutableMIDIEventListPointer(_:)

## Declaration

```swift
func withUnsafeMutableMIDIEventListPointer<Result>(_ body: (inout UnsafeMutableMIDIEventListPointer) -> Result) -> Result
```