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# MIDITransformControlType

A set of values that indicate how to interpret control numbers.

```
enum MIDITransformControlType
```

## Topics

### Transform Control Types

[`kMIDIControlType_7Bit`](/documentation/CoreMIDI/MIDITransformControlType/controlType_7Bit)

A 7-bit control type.

[`kMIDIControlType_14Bit`](/documentation/CoreMIDI/MIDITransformControlType/controlType_14Bit)

A 14-bit control type.

[`kMIDIControlType_7BitRPN`](/documentation/CoreMIDI/MIDITransformControlType/controlType_7BitRPN)

A 7-bit Registered Parameter Number (RPN).

[`kMIDIControlType_14BitRPN`](/documentation/CoreMIDI/MIDITransformControlType/controlType_14BitRPN)

A 14-bit Registered Parameter Number (RPN).

[`kMIDIControlType_7BitNRPN`](/documentation/CoreMIDI/MIDITransformControlType/controlType_7BitNRPN)

A 7-bit Nonregistered Parameter Number (RPN).

[`kMIDIControlType_14BitNRPN`](/documentation/CoreMIDI/MIDITransformControlType/controlType_14BitNRPN)

A 14-bit Nonregistered Parameter Number (RPN).

## Relationships

### Conforms To

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

---

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