# DOC wiki Qt is not clearly

• Hi, I don't know if there is another post.
but I would like to know where I can find the class diagram (UML) for Qt 5. Because it's not clear to me, as soon as I want to castes, or encapsulate the classes with Qt in C ++ c ' is very hard.

So can you change the doc to be more clear? @Qt-programmer @QT-Devv

• @Theo_B I don't think there are any UML diagrams for Qt classes.

"as soon as I want to castes, or encapsulate the classes with Qt in C ++ c ' is very hard" - can you explain what exactly the problem is? In the documentation for each class you will find which classes it inherits.