Qt adds these features to C++:
- a very powerful mechanism for seamless object communication called
- queryable and designable
- powerful
- contextual
- sophisticated interval driven that make it possible to elegantly integrate many tasks in an event-driven GUI
- hierarchical and queryable that organize object ownership in a natural way
- guarded pointers () that are automatically set to 0 when the referenced object is destroyed, unlike normal C++ pointers which become dangling pointers when their objects are destroyed
- a that works across library boundaries.
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