---
title: SetIOBlock
framework: mididriverkit
role: symbol
role_heading: Instance Method
path: mididriverkit/iousermididestination/setioblock
---

# SetIOBlock

## Declaration

```occ
kern_return_t SetIOBlock(MIDIIOBlock block);
```

## See Also

### Instance Methods

- [GetBaseClassID](mididriverkit/iousermididestination/getbaseclassid.md)
- [GetClassID](mididriverkit/iousermididestination/getclassid.md)
- [free](mididriverkit/iousermididestination/free.md)
- [init](mididriverkit/iousermididestination/init.md)