145if (!IsOpen) 160if (IsOpen) 170if (!IsOpen) 177if (!IsOpen) 189if (!IsOpen) 200if (!IsOpen) 218if (!IsOpen) 228if (!IsOpen) 243if (IsOpen) 257if (IsOpen) 267if (!IsOpen) 277if (IsOpen) 284if (IsOpen) 332if (IsOpen) 369if (IsOpen) 380if (IsOpen) 401if (IsOpen) 418if (IsOpen) 437if (IsOpen) 459if (IsOpen) 473if (IsOpen) 480if (IsOpen) 499if (IsOpen) 516if (IsOpen) 535if (IsOpen) 595if (IsOpen) 609if (!IsOpen) 617if (!IsOpen) 628if (IsOpen) 660if (!IsOpen) 706if (!IsOpen) 721Debug.Assert(IsOpen, "ReadOneChar - port not open"); 801if (!IsOpen) 817Debug.Assert(IsOpen, "port not open!"); 981if (!IsOpen) 992if (!IsOpen) 1058if (!IsOpen) 1176if (!IsOpen) 1192if (!IsOpen) 1212if (!IsOpen)