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# Modal Panel Return Values

These constants define the possible return values for such methods as the `runModal...` methods of the [`NSOpenPanel`](/documentation/AppKit/NSOpenPanel) class, which tell which button (OK or Cancel) the user has clicked on an open panel.

## Topics

### Constants

[`var NSCancelButton: Int`](/documentation/AppKit/NSCancelButton)

The Cancel button

[`var NSOKButton: Int`](/documentation/AppKit/NSOKButton)

The OK button


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