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Keep Qt's own message dialogs on Plasma (fixes SIGSEGV in ~QMessageBox) #69

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Keep Qt's own message dialogs on Plasma (fixes SIGSEGV in ~QMessageBox) #69

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6 changes: 6 additions & 0 deletions src/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,12 @@ auto main(int argc, char** argv) -> std::int32_t {
QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
#endif

// Keep using Qt's own dialogs. The Plasma platform theme creates a helper QMessageBox
// for every native message dialog, marks it WA_DeleteOnClose and keeps a raw pointer
// to it. QDialog::exec() deletes that helper dialog when it closes, so the later
// hide() call from ~QMessageBox dereferences freed memory and can kill the app.
QApplication::setAttribute(Qt::AA_DontUseNativeDialogs);

/// 2. Application identification
QApplication::setOrganizationName("cachyos");
QApplication::setOrganizationDomain("cachyos.org");
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