---
title: "beginSheet(for:modalDelegate:didEnd:contextInfo:settings:keychain:)"
framework: securityinterface
role: symbol
role_heading: Instance Method
path: "securityinterface/sfkeychainsettingspanel/beginsheet(for:modaldelegate:didend:contextinfo:settings:keychain:)"
---

# beginSheet(for:modalDelegate:didEnd:contextInfo:settings:keychain:)

Displays a sheet that allows users to change keychain settings.

## Declaration

```swift
func beginSheet(for docWindow: NSWindow!, modalDelegate delegate: Any!, didEnd didEndSelector: Selector!, contextInfo: UnsafeMutableRawPointer!, settings: UnsafeMutablePointer<SecKeychainSettings>!, keychain: SecKeychain!)
```

## Parameters

- `docWindow`: The parent window to which the sheet is attached. If this parameter is nil, the behavior defaults to a standalone modal window.
- `delegate`: The delegate object in which the method specified in the didEndSelector parameter is implemented.
- `didEndSelector`: A method selector for a delegate method called after the modal session has ended, but before the sheet has been dismissed. Implementation of this delegate method is optional.
- `contextInfo`: A pointer to data that is passed to the delegate method. You can use this data pointer for any purpose you wish.
- `settings`: A pointer to a keychain settings structure. Because this structure is versioned, you must preallocate it and fill in the version of the structure.
- `keychain`: The keychain whose settings you wish to have the user change.

## Discussion

Discussion The delegate method has the following signature: - (void)createPanelDidEnd:(NSWindow *)sheet         returnCode:(int)returnCode         contextInfo:(void *)contextInfo The parameters for the delegate method are: The delegate method may dismiss the keychain settings sheet itself; if it does not, the sheet is dismissed on return from the beginSheetForDirectory:... method.

## See Also

### Displaying a sheet or panel

- [runModal(for:keychain:)](securityinterface/sfkeychainsettingspanel/runmodal(for:keychain:).md)