Defining buttons in OpenGL-window

Question

My question is, if it is possible to display buttons on an opengl-window. As you can see on the picture I have created in the main window two smaller ones. The right grey corner is designated for the buttons(marked with a red rectangle). This I created before using Qt. Now I see that Qt is always creating the buttons at the border of the window. Is it possible to place my buttons in this red rectangle? I am using a mac.

Answer 1

Yes. In code, set the containing widget as the parent of the contained widget in its constructor or use setParent() after it has already been constructed.