CommandResult

Represents a command execution result that is sent in COMMAND_ACK.

Use case

You can use CommandResult when sending an ACK to the client from the server:

// command accepted
await commandServer.SendCommandAck(cmd, target, CommandResult.Accepted, cancel);

// command is still running (progress=42)
await commandServer.SendCommandAck(
    cmd,
    target,
    new CommandResult(MavResult.MavResultInProgress, progress: 42),
    cancel
);

// command denied
await commandServer.SendCommandAck(
    cmd,
    target,
    CommandResult.Denied,
    cancel
);

ServerEx handler example:

commandLongEx[MavCmd.MavCmdUser1] = (_, _, _) =>
{
    // perform command logic
    return CommandResult.AcceptedTask;
};

API

CommandResult

Represents the result of a command execution.

Constructor	Description
`CommandResult(MavResult resultCode, int result = 0, byte? progress = null, int? resultParam2 = null)`	Represents the result of a command.

CommandResult exposes a set of pre-allocated singleton instances for supported MavResult values, avoiding unnecessary allocations in hot paths. Each instance is lazy-initialized on first access.

Property	Underlying `MavResult`
`Accepted`	`MavResult.MavResultAccepted`
`TemporarilyRejected`	`MavResult.MavResultTemporarilyRejected`
`Denied`	`MavResult.MavResultDenied`
`Unsupported`	`MavResult.MavResultUnsupported`
`Failed`	`MavResult.MavResultFailed`
`InProgress`	`MavResult.MavResultInProgress`
`Cancelled`	`MavResult.MavResultCancelled`
`CommandLongOnly`	`MavResult.MavResultCommandLongOnly`
`CommandIntOnly`	`MavResult.MavResultCommandIntOnly`
`CommandUnsupportedMavFrame`	`MavResult.MavResultCommandUnsupportedMavFrame`

For each of the above, a corresponding Task<CommandResult> singleton is also available by appending Task to the property name (e.g. AcceptedTask, FailedTask). These are pre-completed tasks wrapping the respective instance, intended for use in synchronous-path async implementations to avoid Task.FromResult allocations.

Property	Type	Description
`ResultParam2`	`int?`	Gets or sets the second result parameter.
`ResultCode`	`MavResult`	Gets the result code of a MAV operation.
`Result`	`int`	Gets the result value.
`Progress`	`byte?`	Gets the progress of the property.

Method	Return Type	Description
`FromResult(MavResult result)`	`CommandResult`	Returns a cached singleton `CommandResult` instance matching the given `MavResult` value.
`AsTaskResult(MavResult result)`	`Task<CommandResult>`	Returns a cached singleton `Task<CommandResult>` wrapping the `CommandResult` instance matching the given `MavResult` value.

`CommandResult.FromResult`

Parameter	Type	Description
`result`	`MavResult`	The MAVLink result code to convert.

`CommandResult.AsTaskResult`

Parameter	Type	Description
`result`	`MavResult`	The MAVLink result code to convert.

Last modified: 04 March 2026