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# minPossiblePositionOfDivider(at:)

Returns the minimum possible position of the divider at the specified index.

```
func minPossiblePositionOfDivider(at dividerIndex: Int) -> CGFloat
```

## Parameters

`dividerIndex`

The index of the divider.

## Return Value

A <doc://com.apple.documentation/documentation/CoreFoundation/CGFloat-swift.struct> that specifies the minimum possible position of the divider.

## Discussion

The position is *possible* because the bounds of the split view and the current position of other dividers dictate it. *Allowable* positions result from letting the delegate apply constraints to the possible positions.

You can invoke this method to determine the range of values that you can pass to [`setPosition(_:ofDividerAt:)`](/documentation/AppKit/NSSplitView/setPosition(_:ofDividerAt:)). You can also invoke it from delegate methods like [`splitView(_:constrainSplitPosition:ofSubviewAt:)`](/documentation/AppKit/NSSplitViewDelegate/splitView(_:constrainSplitPosition:ofSubviewAt:)) to implement relatively complex behaviors that depend on the current state of the split view.

The result of invoking this method when you haven’t invoked [`adjustSubviews()`](/documentation/AppKit/NSSplitView/adjustSubviews()), and the subview frames are invalid, is undefined.

---

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