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# CFCharacterSetHasMemberInPlane(_:_:)

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

```
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

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

## Discussion

---

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