HidValueSetState.cs

using System.Collections;
using System.Collections.Generic;
using System.Linq;

namespace Linearstar.Windows.RawInput;

public class HidValueSetState : IEnumerable<HidValueState>
{
    readonly byte[] report;
    readonly int reportLength;

    public HidValueSet ValueSet { get; }

    public int[] CurrentValues => this.Select(x => x.CurrentValue).ToArray();

    public int?[] ScaledValues => this.Select(x => x.ScaledValue).ToArray();

    internal HidValueSetState(HidValueSet valueSet, byte[] report, int reportLength)
    {
        ValueSet = valueSet;
        this.report = report;
        this.reportLength = reportLength;
    }

    public override string ToString() =>
        $"ValueSet: {{{ValueSet}}}, CurrentValues: [{string.Join(", ", CurrentValues)}]";

    public IEnumerator<HidValueState> GetEnumerator()
    {
        for (var usage = ValueSet.UsageMin; usage <= ValueSet.UsageMax; usage++)
            yield return new HidValueState(new HidValue(ValueSet.reader, ValueSet.valueCaps, usage), report, reportLength);
    }

    IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
}