---
title: isOpaque
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nsview/isopaque
---

# isOpaque

A Boolean value indicating whether the view fills its frame rectangle with opaque content.

## Declaration

```swift
var isOpaque: Bool { get }
```

## Discussion

Discussion The default value of this property is false to reflect the fact that views do no drawing by default. Subclasses can override this property and return true to indicate that the view completely covers its frame rectangle with opaque content. Doing so can improve performance during drawing operations by eliminating the need to render content behind the view.

## See Also

### Related Documentation

- [opaqueAncestor](appkit/nsview/opaqueancestor.md)

### Invalidating the View’s Content

- [setNeedsDisplay(_:)](appkit/nsview/setneedsdisplay(_:).md)
- [needsDisplay](appkit/nsview/needsdisplay.md)
- [display()](appkit/nsview/display().md)
- [display(_:)](appkit/nsview/display(_:).md)
- [displayIgnoringOpacity(_:)](appkit/nsview/displayignoringopacity(_:).md)
- [displayIgnoringOpacity(_:in:)](appkit/nsview/displayignoringopacity(_:in:).md)
- [displayIfNeeded()](appkit/nsview/displayifneeded().md)
- [displayIfNeeded(_:)](appkit/nsview/displayifneeded(_:).md)
- [displayIfNeededIgnoringOpacity()](appkit/nsview/displayifneededignoringopacity().md)
- [displayIfNeededIgnoringOpacity(_:)](appkit/nsview/displayifneededignoringopacity(_:).md)
- [translateRectsNeedingDisplay(in:by:)](appkit/nsview/translaterectsneedingdisplay(in:by:).md)
- [viewWillDraw()](appkit/nsview/viewwilldraw().md)