QSharedMemory problem

[high_flyer]

Try:

QString to = QByteArray((char*)sharedMomory.constData(),sharedMomory,size());
ui->plainTextEdit->setPlainText(to);

QString to = QByteArray((char*)sharedMomory.constData(),sharedMomory,size());
ui->plainTextEdit->setPlainText(to);

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If you run your app in a debugger you will see which line exactly crashes, and why.