How to show the #include dependency tree of a C++ file in Visual Studio?

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Visual Studio has a feature called "Class View" which allows you to see the dependency tree of a C++ file. Follow these steps to access the Class View:

1. Open the C++ file in Visual Studio.
2. Go to the "View" menu and select "Class View" (or press "Ctrl + Shift + C").
3. In the Class View, expand the "All Members" node for the current project.
4. Find the file you are interested in and right-click on it.
5. Select "View Dependencies" from the context menu.
6. A new window will appear, showing the dependency tree of the selected file.

You can also use the "Object Browser" to view the same information. Follow these steps:

1. Open the C++ file in Visual Studio.
2. Go to the "View" menu and select "Object Browser" (or press "Ctrl + Alt + J").
3. In the Object Browser, navigate to the C++ file you are interested in.
4. Right-click on the file and select "Show Dependencies".
5. A new window will appear, showing the dependency tree of the selected file.

Both Class View and Object Browser allow you to see the #include dependency tree of a C++ file in Visual Studio, so choose whichever one you prefer.