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# runLoopModes

The modes governing the types of input to handle during a cycle of the run loop.

```
var runLoopModes: [RunLoop.Mode] { get set }
```

## Discussion

An array of string constants specifying the current run-loop modes.

By default, the sole run-loop mode is `NSDefaultRunLoopMode` (which excludes data from `NSConnection` objects). Some examples of other uses are to limit the input to data received during a mouse-tracking session by setting the mode to `NSEventTrackingRunLoopMode`, or limit it to data received from a modal panel with `NSModalPanelRunLoopMode`.

## See Also

[`perform(_:target:argument:order:modes:)`](/documentation/Foundation/RunLoop/perform(_:target:argument:order:modes:))

Schedules the sending of a message on the receiver.


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