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SerialPort.BreakState Property

Gets or sets the break signal state.

Namespace:  System.IO.Ports
Assembly:  System (in System.dll)
[BrowsableAttribute(false)]
public bool BreakState { get; set; }

Property Value

Type: System.Boolean
true if the port is in a break state; otherwise, false.
ExceptionCondition
IOException

The port is in an invalid state.

- or -

An attempt to set the state of the underlying port failed. For example, the parameters passed from this SerialPort object were invalid.

InvalidOperationException

The stream is closed. This can occur because the Open method has not been called or the Close method has been called.

The break signal state occurs when a transmission is suspended and the line is placed in a break state (all low, no stop bit) until released. To enter a break state, set this property to true. If the port is already in a break state, setting this property again to true does not result in an exception. It is not possible to write to the SerialPort object while BreakState is true.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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