---
title: FMFontFamilyCallbackFilterProcPtr
framework: Application Services
role: symbol
role_heading: Type Alias
platforms: [Mac Catalyst 13.0+]
path: applicationservices/fmfontfamilycallbackfilterprocptr
---

# FMFontFamilyCallbackFilterProcPtr

## Declaration

```swift
typealias FMFontFamilyCallbackFilterProcPtr = (FMFontFamily, UnsafeMutableRawPointer?) -> OSStatus
```