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# cacheDepthMatchesImageDepth

Returns a Boolean value that indicates whether an image’s offscreen window caches use the same bit depth as the image data itself.

```
- (BOOL) cacheDepthMatchesImageDepth;
```

## Return Value

<doc://com.apple.documentation/documentation/Swift/true> if the offscreen window caches use the same bit depth as the image data; otherwise, <doc://com.apple.documentation/documentation/Swift/false>. The default value is <doc://com.apple.documentation/documentation/Swift/false>.

## See Also

[`- (void) setCacheDepthMatchesImageDepth:(BOOL) flag;`](/documentation/AppKit/NSImage/setCacheDepthMatchesImageDepth:)

Sets whether the image’s offscreen window caches use the same bit depth as the image data itself.


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