Quote Originally Posted by wysota View Post
You probably have to set the size constraint for the layout of the main window. You can't do it from within Designer, you have to code it manually in your project.
Hi wysota,
I tried your suggestion and it works somewhat in the test app - 'somewhat' because now I can't resize it any more. My actual problem is more like this post. Hiding vs. removing the widgets from the layout can be thought of as equivalent - or so I thought.
With my test app I was trying to mimic what is going on in my actual application.

Sometimes it is difficult to describe subtle visual behavior in GUI applications.

I designed my application's GUI in Qt Creator's designer and numerous widgets that I have placed are being made invisible at run time - yet the space they have initially occupied is still shown but of course is empty. That is the problem I was trying to solve. The entire thing is not a deal breaker as the main form can simple be made smaller by resizing it manually by clicking and dragging the border after the application starts. I was just hoping for a nice programmatical solution.

Thanks for looking into this and I'm sorry if I wasted your time.