How should application settings be exposed from C++ to QML?

QM • Qt Forum member • September 11, 2026 • 1 answers

A Qt Forum discussion asked how to manage application settings so that QML can read and change values while C++ performs persistent storage.

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Dheerendra V Purohit

September 11, 2026 • Independent answer

✓ Accepted

Dheerendra recommended exposing a custom QObject-based settings class to QML. The class can wrap QSettings and publish values through Q_PROPERTY, keeping persistence details on the C++ side.

cpp

class AppSettings : public QObject {    Q_OBJECT    Q_PROPERTY(QString value READ value WRITE setValue NOTIFY valueChanged)};

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