How to let the close icon of QWidget on the right-up corner appear?

[weixj2003ld]

I have set a central widget(created by QWidget) for the main window,and set its fixed size 1X1(because I do want it to be seen).

Now,I can arrange the three dock widget like the second picture in the #11 post.

But the following problem occur.

When I drag the dock widgets with mouse,I find that there is blank space between them,(I think, it may be the central widget,but I have set the size of it 1X1),could you tell me why?

blankspace.PNG

[wysota]

Because the dock on the left is attached to the left dock area and the docks on the right are attached to the right dock area. Try forcing all of them to be attached to the left area (by forbidding them from the right area).