Socket.UseOnlyOverlappedIO Property


Specifies whether the socket should only use Overlapped I/O mode.

 property bool UseOnlyOverlappedIO { bool get(); void set(bool value); };
public bool UseOnlyOverlappedIO { get; set; }
member this.UseOnlyOverlappedIO : bool with get, set
Public Property UseOnlyOverlappedIO As Boolean

Property Value

true if the Socket uses only overlapped I/O; otherwise, false. The default is false.


The socket has been bound to a completion port.


Set this property to true for a Socket you intend to call DuplicateAndClose. Otherwise, the Framework may assign a completion port to the socket, which would prohibit the use of DuplicateAndClose.

Applies to