# imageDidNotDraw(_:in:) Tells the delegate that the image object is unable, for whatever reason, to lock focus on its image or draw in the specified rectangle. ``` nonisolated optional func imageDidNotDraw(_ sender: NSImage, in rect: NSRect) -> NSImage? ``` ## Parameters `sender` The `NSImage` object that encountered the problem. `rect` The rectangle that the image object was attempting to draw. ## Return Value An `NSImage` to draw in place of the one in `sender`, or `nil` if the delegate wants to draw the image itself. ## Discussion The delegate can do one of the following: - Return another `NSImage` object to draw in the sender’s place. - Draw the image itself and return `nil`. - Simply return `nil` to indicate that `sender` should give up on the attempt at drawing the image. ## See Also [`NSImage`](/documentation/AppKit/NSImage) A high-level interface for manipulating image data. --- Copyright © 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)