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Diffstat (limited to 'examples/serialport/terminal/mainwindow.cpp')
| -rw-r--r-- | examples/serialport/terminal/mainwindow.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/examples/serialport/terminal/mainwindow.cpp b/examples/serialport/terminal/mainwindow.cpp index f9967cc4..2cb52a19 100644 --- a/examples/serialport/terminal/mainwindow.cpp +++ b/examples/serialport/terminal/mainwindow.cpp @@ -109,7 +109,8 @@ void MainWindow::openSerialPort() //! [5] void MainWindow::closeSerialPort() { - serial->close(); + if (serial->isOpen()) + serial->close(); console->setEnabled(false); ui->actionConnect->setEnabled(true); ui->actionDisconnect->setEnabled(false); |