---
title: CFRunLoopSourceGetTypeID()
framework: corefoundation
role: symbol
role_heading: Function
path: corefoundation/cfrunloopsourcegettypeid()
---

# CFRunLoopSourceGetTypeID()

Returns the type identifier of the CFRunLoopSource opaque type.

## Declaration

```swift
func CFRunLoopSourceGetTypeID() -> CFTypeID
```

## Return Value

Return Value The type identifier for the CFRunLoopSource opaque type.

## See Also

### CFRunLoopSource Miscellaneous Functions

- [CFRunLoopSourceCreate(_:_:_:)](corefoundation/cfrunloopsourcecreate(_:_:_:).md)
- [CFRunLoopSourceGetContext(_:_:)](corefoundation/cfrunloopsourcegetcontext(_:_:).md)
- [CFRunLoopSourceGetOrder(_:)](corefoundation/cfrunloopsourcegetorder(_:).md)
- [CFRunLoopSourceInvalidate(_:)](corefoundation/cfrunloopsourceinvalidate(_:).md)
- [CFRunLoopSourceIsValid(_:)](corefoundation/cfrunloopsourceisvalid(_:).md)
- [CFRunLoopSourceSignal(_:)](corefoundation/cfrunloopsourcesignal(_:).md)