net5.0 
namespace System.Threading
{
    public sealed class Semaphore : WaitHandle
    {
        [SupportedOSPlatform("windows")]
        public static bool TryOpenExisting(string! name, [NotNullWhen(true)] out Semaphore? result);
    }
}
Design Reviews
.NET
5.06.07.08.09.010.011.0
.NET Core
1.01.12.02.12.23.03.1
.NET Framework
4.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
.NET Standard
1.01.11.21.31.41.51.62.02.1
Information specific to net5.0
Assembly

System.Threading , Version=5.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Platform Restrictions

This API is only supported on the following platforms:

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