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Why can a qmlRegisterType name fail when it begins with a lowercase letter?

↗ Original Qt Forum discussion

A developer registered a C++ type under a lowercase QML type name and saw unexpected behaviour.

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Dheerendra V Purohit
September 11, 2026 • Independent answer
✓ Accepted
Dheerendra identified the important QML naming rule: creatable QML component/type names are expected to begin with an uppercase letter.
cpp
qmlRegisterType<TestObj>("TestClasses", 1, 0, "TestObj");
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