QT3 -- updating a GUI all at once, instead of widget by widget

[wysota]

I thought that when you called setText, from within (slot) function, for a widget (like QLabel, for example), it immediately updated the widget (including visually).

No, it updates the data and schedules a paint event.

However, if I understand you correctly, the visual update doesn't happen until the event loop is returned to?

Correct. However all widgets will be painted separately. Just that it will happen during the same event processing iteration.