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# selectionRange(forProposedRange:granularity:)

Returns an adjusted selected range based on the selection granularity.

```
func selectionRange(forProposedRange proposedCharRange: NSRange, granularity: NSSelectionGranularity) -> NSRange
```

## Parameters

`proposedCharRange`

The proposed selected range.

`granularity`

The selection granularity.

## Return Value

The adjusted selected range, taking into account the selection granularity.

## Discussion

This method is invoked repeatedly during mouse tracking to modify the range of the selection. Override this method to specialize selection behavior.

## See Also

[`selectionGranularity`](/documentation/AppKit/NSTextView/selectionGranularity)

The selection granularity for subsequent extension of a selection.


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