QScrollArea in a QTabWidget page

[CoderMan]

I have discovered a refinement: setSizeConstraint(QLayout::SetFixedSize) stops the page widget from expanding in any direction when the entire tab widget is expanded, but these can be used instead.

page->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
scrollArea->setWidgetResizable(true);

page->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
scrollArea->setWidgetResizable(true);

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Now the page widget will use all the space in can get, yet scroll bars will appear if that space is not enough.