xamarinwatchos 
namespace System.Diagnostics
{
    [DefaultEvent("EntryWritten")]
    public class EventLog : Component, ISupportInitialize
    {
        public static bool SourceExists(string source);
    }
}
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.NET 5.06.07.08.09.010.0
.NET Core 2.02.12.23.03.1
.NET Framework 1.01.12.03.03.54.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
.NET Standard 2.02.1
Information specific to xamarinwatchos
Assemblies

System.Diagnostics.EventLog , Version=10.0.0.0, PublicKeyToken=cc7b13ffcd2ddd51

System.Diagnostics.EventLog , Version=9.0.0.0, PublicKeyToken=cc7b13ffcd2ddd51

Referencing

Your project needs a package reference to System.Diagnostics.EventLog.

Package System.Diagnostics.EventLog (10.0.0-preview.1.25080.5) netstandard2.0
Platform Restrictions

This API is only supported on the following platforms:

  • Windows
  • Built-in API
  • Package-provided API