---
title: "withUnsafeMutableMIDIEventPacketPointer(_:)"
framework: coremidi
role: symbol
role_heading: Instance Method
path: "coremidi/midieventpacket/builder/withunsafemutablemidieventpacketpointer(_:)"
---

# withUnsafeMutableMIDIEventPacketPointer(_:)

## Declaration

```swift
func withUnsafeMutableMIDIEventPacketPointer<Result>(_ body: (inout UnsafeMutableMIDIEventPacketPointer) -> Result) -> Result
```