---
title: "ATSCreateFontQueryRunLoopSource(_:_:_:_:)"
framework: Application Services
role: symbol
role_heading: Function
platforms: [Mac Catalyst 13.1+]
path: applicationservices/1563673-atscreatefontqueryrunloopsource
---

# ATSCreateFontQueryRunLoopSource(_:_:_:_:)

## Declaration

```swift
func ATSCreateFontQueryRunLoopSource(_ queryOrder: CFIndex, _ sourceOrder: CFIndex, _ callout: ATSFontQueryCallback!, _ context: UnsafePointer<ATSFontQuerySourceContext>!) -> Unmanaged<CFRunLoopSource>!
```