QT / QT-Designer Question: Auto Resize Widget

Question

Using QT-Designer, I put a container widget in the window. I would like him to click on the edges of the window and cover the entire client area. The window is resized.

Do I need to subscribe to resize and manually resize the child widget? or is there some kind of mechanism that I can use that does this automatically?

Answer 1

Just select the widget of the main window in the form editor and tell it so that its children break horizontally (Ctrl-1) or vertically (Ctrl-2). They are under the "Form" menu.

(If you are using Qt Creator, use Ctrl-1, Ctrl-2, or under the menu under Tools → Form Editor.)

If you change your mind later, you can break the layout and change the order of things.

"Extending to fill available space" is a general rule in Qt (as with most other toolkits). It might be worth reading QLayout and layout control in general .