Refined error handling

2024-07-13 17:20:18 +02:00
parent 3231f4822f
commit 582412f4dc
2 changed files with 18 additions and 3 deletions
@@ -70,8 +70,12 @@ public partial class SerialPort : IDisposable
        }

        _hPort = PInvoke.CreateFile(PortName,
-            (uint)(FILE_ACCESS_RIGHTS.FILE_GENERIC_READ | FILE_ACCESS_RIGHTS.FILE_GENERIC_WRITE), 0,
-            null, FILE_CREATION_DISPOSITION.OPEN_EXISTING, FILE_FLAGS_AND_ATTRIBUTES.FILE_FLAG_OVERLAPPED, null);
+            (uint)(FILE_ACCESS_RIGHTS.FILE_GENERIC_READ | FILE_ACCESS_RIGHTS.FILE_GENERIC_WRITE),
+            0,
+            null,
+            FILE_CREATION_DISPOSITION.OPEN_EXISTING, FILE_FLAGS_AND_ATTRIBUTES.FILE_FLAG_OVERLAPPED,
+            null
+        );

        if (_hPort.IsInvalid)
        {
@@ -80,7 +84,7 @@ public partial class SerialPort : IDisposable
                return false;
            }

-            throw new CommPortException("Port Open Failure");
+            throw new CommPortException("Port Open Failure", Marshal.GetLastWin32Error());
        }

        _online = true;