[vtkusers] VTK and QT - Setup help QT Designer wont open

[John Drescher]

> Well I figured it out, apparently I had Debug mode when I built it and copy
> pasted the QVTKWidgetplugin of that, may be thats why it broke designer. I
> rebuilt in Release and everything works well.
>

Mixing release and debug or even different compilers with dlls on
windows can and will cause you loads of pain mainly because the memory
heaps are incompatible.
John