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Qt Designer resize widgets !

  • I am working on an implementation that acts similar to Qt designer , where we can drag and drop custom widgets on the form and move and resize the widgets as well. I would like to have an a-idea on how to resize the widget on the fly.

    In Qt designer when we select a widget there is a bounding frame with 8 blue point and clicking on those points and moving we can resize the widgets accordingly. How to implement the resizing on the fly like in Qt Designer.


    P.S What are the blue dots ? are they widgets or are they just points rendered by the painter ?


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