# WindowSplitter.InitialState

Initial splitter range and keyboard configuration.

## Signatures

```ts
export interface InitialState {
    readonly value: number;
    readonly min?: number;
    readonly max?: number;
    readonly step?: number;
    readonly orientation?: Orientation;
}
```

## Property: max

Maximum value, defaulting to one hundred.

## Property: max: Property: max

It defines the upper keyboard and ARIA bound. Callers must ensure it is
greater than or equal to `min`; neither the schema nor constructor compares them.

## Property: min

Minimum value, defaulting to zero.

## Property: min: Property: min

It defines the collapsed boundary and Home result. Callers must ensure it is
less than or equal to `max`; neither the schema nor constructor compares them.

## Property: orientation

Separator orientation, defaulting to vertical.

## Property: orientation: Property: orientation

Orientation determines ARIA output and arrow-key mapping.

## Property: step

Arrow-key increment, defaulting to ten.

## Property: step: Property: step

The widget needs an explicit adjustment granularity. Callers must provide a
positive value; `Schema.Finite` rejects infinities and NaN but accepts zero
and negative numbers.

## Property: value

Initial pane size, clamped to min/max.

## Property: value: Property: value

Invalid out-of-range starts become a valid accessible value.