ResizeEvent/Resize out of control

[C167]

not directly layouts I felt the power of QSizePolicy:
not the tab widget itself, but the objects that show the images need a policy:

screen1->setSizePolicy ( QSizePolicy::Ignored, QSizePolicy::Ignored );
screen2->setSizePolicy ( QSizePolicy::Ignored, QSizePolicy::Ignored );

screen1->setSizePolicy ( QSizePolicy::Ignored, QSizePolicy::Ignored );
screen2->setSizePolicy ( QSizePolicy::Ignored, QSizePolicy::Ignored );

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hehe, again, thank you very much. As everything works well (and now, the images show up immediatly in the tabWidget instead of needing 7 seconds to load without sizePolicys), i'm very happy that the program is finally finished (my biggest program ever).