---
title: CMBufferQueueGetTypeID()
framework: coremedia
role: symbol
role_heading: Function
path: coremedia/cmbufferqueuegettypeid()
---

# CMBufferQueueGetTypeID()

Returns the type identifier of buffer queue objects.

## Declaration

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

## Return Value

Return Value CFTypeID of CMBufferQueue objects.

## Discussion

Discussion You can check if a CFTypeRef object is actually a CMBufferQueue by comparing CFGetTypeID(_:)(object) with CMBufferQueueGetTypeID()().