'Declaration
 
<ExtensionAttribute()>
Public Shared Function SubscribeMetric( _
   ByVal consumer As IEasySparkplugConsumer, _
   ByVal metricSubscriptionArguments As SparkplugMetricSubscriptionArguments, _
   ByVal metricNotificationCallback As EasySparkplugMetricNotificationEventHandler _
) As Integer

'Usage
 
Dim consumer As IEasySparkplugConsumer
Dim metricSubscriptionArguments As SparkplugMetricSubscriptionArguments
Dim metricNotificationCallback As EasySparkplugMetricNotificationEventHandler
Dim value As Integer
 
value = IEasySparkplugConsumerExtension.SubscribeMetric(consumer, metricSubscriptionArguments, metricNotificationCallback)

[Extension()]
public static int SubscribeMetric( 
   IEasySparkplugConsumer consumer,
   SparkplugMetricSubscriptionArguments metricSubscriptionArguments,
   EasySparkplugMetricNotificationEventHandler metricNotificationCallback
)

[Extension()]
public:
static int SubscribeMetric( 
   IEasySparkplugConsumer^ consumer,
   SparkplugMetricSubscriptionArguments^ metricSubscriptionArguments,
   EasySparkplugMetricNotificationEventHandler^ metricNotificationCallback
) 

Parameters

consumer

The consumer object that will perform the operation.

The value of this parameter cannot be null (Nothing in Visual Basic).

metricSubscriptionArguments

The Sparkplug metric subscription arguments.

The value of this parameter cannot be null (Nothing in Visual Basic).

metricNotificationCallback

The callback to invoke for the metric notification.

The value of this parameter cannot be null (Nothing in Visual Basic).

Return Value

To unsubscribe from the metric, use the UnsubscribeMetric, UnsubscribeAllMetrics or UnsubscribeAll method.

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

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Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows