C# Signature:

[DllImport("kernel32.dll")]
private static extern bool ClearCommError(
  [In] IntPtr hFile, // not int, convert int to IntPtr: new IntPtr(12)
  [Out, Optional] out uint lpErrors,
  [Out, Optional] out COMSTAT lpStat
  [In] int hFile,
  [Out, Optional] uint lpErrors,
  [In, Out, Optional] ref COMSTAT lpStat
);

User-Defined Types:

COMSTAT

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

The following code:

COMSTAT stats = new COMSTAT();
uint flags = 0;
ClearCommError(hComm, out flags, out stats);
ClearCommError(hComm, 0, ref stats);

will get you the statistics of the com port passed with hComm.

Alternative Managed API:

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