AVCoders.SignalR.SetTopBox 2026.9.4

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package AVCoders.SignalR.SetTopBox --version 2026.9.4
                    


                    

                
NuGet\Install-Package AVCoders.SignalR.SetTopBox -Version 2026.9.4
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="AVCoders.SignalR.SetTopBox" Version="2026.9.4" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="AVCoders.SignalR.SetTopBox" Version="2026.9.4" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="AVCoders.SignalR.SetTopBox" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add AVCoders.SignalR.SetTopBox --version 2026.9.4
                    


                    

                
#r "nuget: AVCoders.SignalR.SetTopBox, 2026.9.4"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package AVCoders.SignalR.SetTopBox@2026.9.4
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=AVCoders.SignalR.SetTopBox&version=2026.9.4
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=AVCoders.SignalR.SetTopBox&version=2026.9.4
                    


                            Install as a Cake Tool

AVCoders.SignalR.SetTopBox

SignalR hub and bridge for set-top box remote control: remote buttons, power and active-source state. Part of the AV Coders device library. Targets .NET 8.0.

Install

dotnet add package AVCoders.SignalR.SetTopBox

Published to nuget.org. See the repository README for details.

What's inside

  • ISetTopBoxHub / SetTopBoxHub
  • SetTopBoxState - name, source id, supported buttons, power, desired power, active source and comms state
  • SetTopBoxUiSignalR - subscribes to a SetTopBoxManager and rebroadcasts state
  • SetTopBoxManager - wraps an AVCoders.MediaPlayer.MediaPlayer that implements ISetTopBox (for example AppleTvCec)

Contract

Hub path convention: /hubs/settopbox. UIs join a group by the manager's name, the same way as the source hub.

Client to server (SetTopBoxHub):

Method Notes
JoinGroup(string groupName) Same name and signature as SourceHub; pushes the current SetTopBoxState to the caller.
SendRemoteButton(string group, string button) button is a RemoteButton name, matched case-insensitively. Unknown or unsupported buttons are logged and dropped.
PowerOn(string group) / PowerOff(string group)
GetState(string group) Returns the current SetTopBoxState, or null for an unknown group.
GetGroups() Registered group names.

Server to client (ISetTopBoxHub):

Method Notes
UpdateSetTopBox(SetTopBoxState state) Sent on join and whenever power, desired power, comms or active-source state changes.

Commands are fire-and-forget: the hub returns as soon as the work is queued, and the new state comes back through UpdateSetTopBox.

Wire shape

SetTopBoxState is serialised by the SignalR JSON protocol with camelCase names and enums as integers (PowerState and CommunicationState from AVCoders.Core):

{
  "name": "Boardroom",
  "sourceId": "AppleTv",
  "supportedButtons": ["Enter", "Up", "Down", "Left", "Right", "Back", "Home", "Play", "Pause", "PowerOn", "PowerOff"],
  "powerState": 1,
  "desiredPowerState": 1,
  "isActiveSource": true,
  "communicationState": 1
}

sourceId is the SourceId of the matching entry in the source hub, so a panel can show a remote on that source's tile.

Usage

// Program / control-system startup
new SetTopBoxUiSignalR(new SetTopBoxManager(zoneName, appleTv, "AppleTv"), SignalRProgram.SetTopBoxHubContext!);

// Web host
app.MapHub<SetTopBoxHub>("/hubs/settopbox");

SetTopBoxManager throws ArgumentException if the device does not implement ISetTopBox. Active-source reporting comes from AppleTvCec.IsActiveSource; other drivers report false.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
2026.9.5 0 9/17/2026
2026.9.4 79 9/14/2026