<!--
{
  "availability" : [
    "macOS: 10.4.0 - 10.15.0"
  ],
  "documentType" : "symbol",
  "framework" : "Quartz",
  "identifier" : "/documentation/Quartz/QCCompositionParameterView",
  "metadataVersion" : "0.1.0",
  "role" : "Class",
  "symbol" : {
    "kind" : "Class",
    "modules" : [
      "Quartz"
    ],
    "preciseIdentifier" : "c:objc(cs)QCCompositionParameterView"
  },
  "title" : "QCCompositionParameterView"
}
-->

# QCCompositionParameterView

A class that allows users to edit the input parameters of a composition in real time. The composition can be rendering in any of the following objects: [`QCRenderer`](/documentation/Quartz/QCRenderer), [`QCView`](/documentation/Quartz/QCView), or [`QCCompositionLayer`](/documentation/Quartz/QCCompositionLayer).

```
class QCCompositionParameterView
```

## Topics

### Getting and Setting the Renderer

[`-  setCompositionRenderer:`](/documentation/Quartz/QCCompositionParameterView/setCompositionRenderer(_:))

Sets the composition parameter view for editing the input parameters of the provided renderer object.

[`-  compositionRenderer`](/documentation/Quartz/QCCompositionParameterView/compositionRenderer())

Returns the renderer object associated with the composition parameter view.

### Checking for Input Parameters

[`-  hasParameters`](/documentation/Quartz/QCCompositionParameterView/hasParameters())

Checks whether the composition that is currently edited by the composition parameter view has any input parameters.

### Setting and Retrieving the Delegate

[`-  setDelegate:`](/documentation/Quartz/QCCompositionParameterView/setDelegate(_:))

Sets the composition parameter view delegate.

[`-  delegate`](/documentation/Quartz/QCCompositionParameterView/delegate())

Returns the composition parameter view delegate.

### Managing Background Drawing

[`-  setDrawsBackground:`](/documentation/Quartz/QCCompositionParameterView/setDrawsBackground(_:))

Sets whether the composition parameter view draws its background.

[`-  drawsBackground`](/documentation/Quartz/QCCompositionParameterView/drawsBackground())

Returns whether the composition parameter view draws its background.

### Setting and Getting the Background Color

[`-  setBackgroundColor:`](/documentation/Quartz/QCCompositionParameterView/setBackgroundColor(_:))

Sets the background color of the composition parameter view.

[`-  backgroundColor`](/documentation/Quartz/QCCompositionParameterView/backgroundColor())

Retrieves the background color of the composition parameter view.

## Relationships

### Conforms To

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

[`NSTouchBarProvider`](/documentation/AppKit/NSTouchBarProvider)

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

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

[`NSAccessibilityProtocol`](/documentation/AppKit/NSAccessibilityProtocol)

[`NSCoding`](/documentation/Foundation/NSCoding)

[`NSDraggingDestination`](/documentation/AppKit/NSDraggingDestination)

[`NSUserInterfaceItemIdentification`](/documentation/AppKit/NSUserInterfaceItemIdentification)

[`NSAccessibilityElementProtocol`](/documentation/AppKit/NSAccessibilityElementProtocol)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`NSStandardKeyBindingResponding`](/documentation/AppKit/NSStandardKeyBindingResponding)

[`NSAnimatablePropertyContainer`](/documentation/AppKit/NSAnimatablePropertyContainer)

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

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

[`NSUserActivityRestoring`](/documentation/AppKit/NSUserActivityRestoring)

[`NSAppearanceCustomization`](/documentation/AppKit/NSAppearanceCustomization)

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

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

### Inherits From

[`NSView`](/documentation/AppKit/NSView)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)