qt - How to scroll QPlainTextEdit to top? -

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After inserting in some text, I would like to automatically scroll to the top of the QPlainTextEdit widget How do I know this?

inherited from QTextEdit as QAbstractScrollArea , you can move its scrollbar: 

  QScrollBar * vScrollBar = yourTextEdit-> Vertical ScrollBar (); VScrollBar-> TriggerAction (QScrollBar :: SliderToMinimum);

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