---
title: "CFCharacterSetHasMemberInPlane(_:_:)"
framework: corefoundation
role: symbol
role_heading: Function
path: "corefoundation/cfcharactersethasmemberinplane(_:_:)"
---

# CFCharacterSetHasMemberInPlane(_:_:)

Reports whether or not a character set contains at least one member character in the specified plane.

## Declaration

```swift
func CFCharacterSetHasMemberInPlane(_ theSet: CFCharacterSet!, _ thePlane: CFIndex) -> Bool
```

## Parameters

- `theSet`: The character set to examine.
- `thePlane`: The plane number to be checked for the membership. The valid value range is from 0 to 16. If the value is outside of the valid plane number range, the behavior is undefined.

## Return Value

Return Value true if at least one member character is in the specified plane, otherwise false.

## See Also

### Querying Character Sets

- [CFCharacterSetCreateBitmapRepresentation(_:_:)](corefoundation/cfcharactersetcreatebitmaprepresentation(_:_:).md)
- [CFCharacterSetIsCharacterMember(_:_:)](corefoundation/cfcharactersetischaractermember(_:_:).md)
- [CFCharacterSetIsLongCharacterMember(_:_:)](corefoundation/cfcharactersetislongcharactermember(_:_:).md)
- [CFCharacterSetIsSupersetOfSet(_:_:)](corefoundation/cfcharactersetissupersetofset(_:_:).md)