Discards data from the serial driver's transmit buffer.
public void DiscardOutBuffer()
Exception Condition 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
object were invalid. SerialPort InvalidOperationException
The stream is closed. This can occur because the
method has not been called or the Open method has been called. Close
This method is equivalent to the following Visual Basic code:
MSComm1.OutBufferCount = 0. It clears the transmit buffer, but does not affect the receive buffer. .NET Framework
Supported in: 4.5, 4, 3.5, 3.0, 2.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
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.