[Interest] Re : Re : QLineEdit "stretch" in QHBoxLayout using designer

[Nikos Giotis]

>3. Select both and then select Form -> Lay Out Horizontally from the
>main menu of Designer

This creates a layout with your two widgets as its children. This layout
you have just created has not been set as the layout of your QMainWindow
subclass.
The solution is real easy, just select your centralWidget (by clicking on
empty space or from the object explorer tree to the right side) and then
click 'Layout in a Grid' or whatever layout suits your needs.This will
create and set a layout for the centralWidget with your existing horizontal
layout as its child.
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