# canClose(withDelegate:shouldClose:contextInfo:) Determines whether to close the document, prompting the user as needed to choose a course of action. ``` func canClose(withDelegate delegate: Any, shouldClose shouldCloseSelector: Selector?, contextInfo: UnsafeMutableRawPointer?) ``` ## Parameters `delegate` The delegate to which the selector message is sent. `shouldCloseSelector` The selector of the message sent to the delegate. `contextInfo` Object passed with the callback to provide any additional context information. ## Discussion If the document is not dirty, this method immediately calls the `shouldCloseSelector` callback on the specified delegate with . If the document is dirty, an alert is presented giving the user a chance to save, not save, or cancel. If the user chooses to save, this method saves the document. If the save completes successfully, this method calls the callback with . If the save is canceled or otherwise unsuccessful, this method calls the callback with . This method may be called by [`shouldCloseWindowController(_:delegate:shouldClose:contextInfo:)`](/documentation/AppKit/NSDocument/shouldCloseWindowController(_:delegate:shouldClose:contextInfo:)). It is also called by the `NSDocumentController` method [`closeAllDocuments(withDelegate:didCloseAllSelector:contextInfo:)`](/documentation/AppKit/NSDocumentController/closeAllDocuments(withDelegate:didCloseAllSelector:contextInfo:)). You should call it before you call [`close()`](/documentation/AppKit/NSDocument/close()) if you are closing the document and want to give the user a chance to save any edits. Pass the `contextInfo` object with the callback. The `shouldCloseSelector` callback method should have the following signature: ```objc - (void)document:(NSDocument *)doc shouldClose:(BOOL)shouldClose contextInfo:(void *)contextInfo ``` --- 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)