No, neither of them are supplied by Microsoft. They're both open-source frameworks (conceptually similar to MFC except not restricted to Windows). They're useful if you're developing apps to run on multiple platforms.
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No, neither of them are supplied by Microsoft. They're both open-source frameworks (conceptually similar to MFC except not restricted to Windows). They're useful if you're developing apps to run on multiple platforms.
No... QT is quite a solid platform without weird memoryleaks. QTCreator even warns you now and then (not always, don't know why that is) that there are memoryleaks. Install QT + QTCreator for a few days and play around with it. If you don't like it you can throw it away as easily as you installed it ;)