---
title: "AUGraphAddRenderNotify(_:_:_:)"
framework: audiotoolbox
role: symbol
role_heading: Function
path: "audiotoolbox/augraphaddrendernotify(_:_:_:)"
---

# AUGraphAddRenderNotify(_:_:_:)

Adds a render notification callback to an audio processing graph.

## Declaration

```swift
func AUGraphAddRenderNotify(_ inGraph: AUGraph, _ inCallback: AURenderCallback, _ inRefCon: UnsafeMutableRawPointer?) -> OSStatus
```

## Parameters

- `inGraph`:
- `inCallback`:
- `inRefCon`:

## Return Value

Return Value

## Discussion

Discussion Adds a callback that the graph will call every time the graph renders. The callback will be called once before the graph’s render operation, and once after the render operation is complete.

## See Also

### Audio Unit Processing Graph Services Functions

- [AUGraphAddNode(_:_:_:)](audiotoolbox/augraphaddnode(_:_:_:).md)
- [AUGraphClearConnections(_:)](audiotoolbox/augraphclearconnections(_:).md)
- [AUGraphClose(_:)](audiotoolbox/augraphclose(_:).md)
- [AUGraphConnectNodeInput(_:_:_:_:_:)](audiotoolbox/augraphconnectnodeinput(_:_:_:_:_:).md)
- [AUGraphCountNodeInteractions(_:_:_:)](audiotoolbox/augraphcountnodeinteractions(_:_:_:).md)
- [AUGraphDisconnectNodeInput(_:_:_:)](audiotoolbox/augraphdisconnectnodeinput(_:_:_:).md)
- [AUGraphGetCPULoad(_:_:)](audiotoolbox/augraphgetcpuload(_:_:).md)
- [AUGraphGetIndNode(_:_:_:)](audiotoolbox/augraphgetindnode(_:_:_:).md)
- [AUGraphGetInteractionInfo(_:_:_:)](audiotoolbox/augraphgetinteractioninfo(_:_:_:).md)
- [AUGraphGetMaxCPULoad(_:_:)](audiotoolbox/augraphgetmaxcpuload(_:_:).md)
- [AUGraphGetNodeCount(_:_:)](audiotoolbox/augraphgetnodecount(_:_:).md)
- [AUGraphGetNodeInfoSubGraph(_:_:_:)](audiotoolbox/augraphgetnodeinfosubgraph(_:_:_:).md)
- [AUGraphGetNodeInteractions(_:_:_:_:)](audiotoolbox/augraphgetnodeinteractions(_:_:_:_:).md)
- [AUGraphGetNumberOfInteractions(_:_:)](audiotoolbox/augraphgetnumberofinteractions(_:_:).md)
- [AUGraphInitialize(_:)](audiotoolbox/augraphinitialize(_:).md)