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  "framework" : "AppKit",
  "identifier" : "/documentation/AppKit/NSBitmapImageRep/cgImage",
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  "role" : "Instance Property",
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  "title" : "cgImage"
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# cgImage

A Core Graphics image object based on the bitmap image representation’s data.

```
var cgImage: CGImage? { get }
```

## Discussion

The autoreleased <doc://com.apple.documentation/documentation/CoreGraphics/CGImage> opaque type in this property has pixel dimensions that are identical to those of the bitmap image rep object. If an existing <doc://com.apple.documentation/documentation/CoreGraphics/CGImage> opaque type is not available, accessing this property creates a new one. If you change the bitmap image rep’s contents later, accessing this property again might return a different <doc://com.apple.documentation/documentation/CoreGraphics/CGImage> opaque type.

## See Also

[`-  initWithCGImage:`](/documentation/AppKit/NSBitmapImageRep/init(cgImage:)-7o5tz)

Returns a bitmap image representation from a Core Graphics image object.


---

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