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    Version Source
  1. Catalog
  2. System.Threading
  3. EventWaitHandle
  4. OpenExisting(String, NamedWaitHandleOptions)
  • EventWaitHandle
    • EventWaitHandle(Boolean, EventResetMode)
    • EventWaitHandle(Boolean, EventResetMode, String)
    • EventWaitHandle(Boolean, EventResetMode, String, Boolean)
    • EventWaitHandle(Boolean, EventResetMode, String, NamedWaitHandleOptions)
    • EventWaitHandle(Boolean, EventResetMode, String, Boolean, EventWaitHandleSecurity)
    • EventWaitHandle(Boolean, EventResetMode, String, NamedWaitHandleOptions, Boolean)
    • GetAccessControl()
    • OpenExisting(String)
    • OpenExisting(String, EventWaitHandleRights)
    • OpenExisting(String, NamedWaitHandleOptions)
    • Reset()
    • Set()
    • SetAccessControl(EventWaitHandleSecurity)
    • TryOpenExisting(String, EventWaitHandle)
    • TryOpenExisting(String, EventWaitHandleRights, EventWaitHandle)
    • TryOpenExisting(String, NamedWaitHandleOptions, EventWaitHandle)
    • GetAccessControl(EventWaitHandle)
    • SetAccessControl(EventWaitHandle, EventWaitHandleSecurity)
net10.0
namespace System.Threading
{
    public class EventWaitHandle : WaitHandle
    {
        [SupportedOSPlatform("windows")]
        public static EventWaitHandle! OpenExisting(string! name, NamedWaitHandleOptions options);
    }
}
Design Reviews
  • dotnet/runtime#102682 one year ago (Approved)
.NET
10.0
Information specific to net10.0
Assembly

System.Threading , Version=10.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

The API is automatically referenced.

Preview The API is contained in a preview framework.
Platform Restrictions

This API is only supported on the following platforms:

  • Windows
  • Built-in API
  • Package-provided API
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01/11/2026
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