mgth/LittleBigMouse · error · FormatException

Macro delays must be between 0 and 10000 ms.

Error message

Macro delays must be between 0 and 10000 ms.

What it means

Thrown by RemoteMacro.Parse when a token parsed as an integer is treated as a delay following the previous KEY_ command but falls outside the allowed 0-10000 ms range. It fires whenever a user-supplied macro sequence contains a numeric token like '-5' or '20000', enforcing an upper bound so a macro cannot stall the remote-control session indefinitely.

Solutions

1. Edit the macro sequence so every numeric delay token is between 0 and 10000 milliseconds.
2. Split longer pauses into multiple consecutive delay tokens, e.g. 'KEY_POWER,10000,10000' instead of 'KEY_POWER,20000'.
3. Remove or correct malformed delay tokens such as negative or transposed numbers before saving the macro.

When it happens

Trigger: Thrown at LittleBigMouse.Plugins/LittleBigMouse.Plugin.Vcp.Avalonia/RemoteMacro.cs:21 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of mgth/LittleBigMouse@7a42f01d47 (2026-09-16). Data as JSON: /api/errors/4eb6fe2d4e273101. Report an issue: GitHub.

Appendix: source

Thrown at LittleBigMouse.Plugins/LittleBigMouse.Plugin.Vcp.Avalonia/RemoteMacro.cs:21

namespace LittleBigMouse.Plugin.Vcp.Avalonia;

/// <summary>Shared parser for Samsung and VIDAA remote-key macros.</summary>
public static class RemoteMacro
{
    public static IReadOnlyList<(string Key, TimeSpan DelayAfter)> Parse(string sequence)
    {
        var result = new List<(string Key, TimeSpan DelayAfter)>();
        var tokens = sequence.Split(
            [',', ';', '+', '\n', '\r'],
            StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);

        foreach (var token in tokens)
        {
            if (int.TryParse(token, out var milliseconds))
            {
                if (result.Count == 0) throw new FormatException("A delay must follow a KEY_ command.");
                if (milliseconds is < 0 or > 10000)
                    throw new FormatException("Macro delays must be between 0 and 10000 ms.");
                result[^1] = (result[^1].Key, TimeSpan.FromMilliseconds(milliseconds));
                continue;
            }

            var key = token.ToUpperInvariant();
            if (!key.StartsWith("KEY_", StringComparison.Ordinal) || key.Any(char.IsWhiteSpace))
                throw new FormatException($"Invalid remote key: {token}");
            result.Add((key, TimeSpan.FromMilliseconds(150)));
        }

        if (result.Count == 0) throw new FormatException("Enter at least one KEY_ command.");
        return result;
    }
}

View on GitHub (pinned to 7a42f01d47)