[vtkusers] Parse code from QVTKWidget to QVTKWidget2

[Ben Boeckel]

On Mon, Dec 21, 2015 at 22:41:17 -0200, Lays Rodrigues wrote:
> Can anyone help me solve this?

The QVTKWidget2 class is in this library:

    vtkGUISupportQtOpenGL

Did you add it to your link line?

--Ben