public void Close()
{
if (this.mhRS == -1)
{
return;
}
Rs232.CloseHandle(this.mhRS);
this.mhRS = -1;
}
private bool pHandleOverlappedWrite(byte[] Buffer)
{
this.muOverlappedW.hEvent = Rs232.CreateEvent(0, 1, 0, (string)null);
if (this.muOverlappedW.hEvent == 0)
{
throw new ApplicationException("Error creating event for overlapped write.");
}
Rs232.PurgeComm(this.mhRS, 12);
this.mbWaitOnRead = true;
int num = 0;
bool flag = false;
if (Rs232.WriteFile(this.mhRS, Buffer, Buffer.Length, ref num, ref this.muOverlappedW) == 0)
{
int lastError = Rs232.GetLastError();
if (lastError != 997)
{
throw new ArgumentException("Overlapped Read Error: " + this.pErr2Text(lastError));
}
if (Rs232.WaitForSingleObject(this.muOverlappedW.hEvent, -1) == 0)
{
if (Rs232.GetOverlappedResult(this.mhRS, ref this.muOverlappedW, ref num, 0) == 0)
{
flag = true;
}
else
{
this.mbWaitOnRead = false;
//if (this.TxCompletedEvent != null)
// this.TxCompletedEvent(this);
}
}
}
else
{
flag = false;
}
Rs232.CloseHandle(this.muOverlappedW.hEvent);
return(flag);
}
