Denso BHT-400-CE Reference Manual page 304

OutBufferCount
Acquires the size of meaningful data in the send buffer (out buffer).
￭ Syntax
[VB]
Public Property ReadOnly
[C#]
public int OutBufferCount
￭ Property
Size of meaningful data in the send buffer (out buffer) (bytes)
Exceptions
￭
Name of Exception
ObjectDisposedException
Note
￭
Data can be stored in the send buffer (out buffer) using the Output method.
If the port is closed by specifying "false" for the PortOpen property, the size of meaningful
data is reset to "0".
[Ex.] Send the len(byte) data when there is no longer any data in the send buffer.
[VB]
If MyComm.OutBufferCount = 0 Then
MyComm.Output(buffer, 0, len)
End If
[C#]
if (MyComm.OutBufferCount == 0)
{
MyComm.Output(buffer, 0, len);
}
OutBufferCount As Integer
{get}
Meaning
The COM port has not been opened yet.
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