---
title: SetEnableWithCompletion
framework: DriverKit
role: symbol
role_heading: Instance Method
platforms: [DriverKit, iOS, iPadOS, macOS]
path: driverkit/ioservicenotificationdispatchsource/3538747-setenablewithcompletion
---

# SetEnableWithCompletion

## Declaration

```occ
virtual kern_return_t SetEnableWithCompletion(bool enable, IODispatchSourceCancelHandler handler);
```

## Return Value

kIOReturnSuccess on success. See `IOReturn.h` for error codes.