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POHow to resize QMainWindow after removing all DockWidgets?
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copied!<p>I’m trying to make an application consisting of a <code>QMainWindow</code>, the central widget of which is a <code>QToolBar</code> (it may not be usual, but for my purpose the toolbar’s well suited). Docks are allowed below only. I added a <code>QDockWidget</code> to it, and a <code>QAction</code> on the <code>QToolBar</code> toggles the <code>QDockWidget</code> on and off with <code>removeDockWidget()</code> and <code>restoreDockWidget()</code>.</p> <p>The default size of the <code>QMainWindow</code> is 800 by 24, <code>QToolBar</code>’s <code>maximumHeight</code> is set to 24 too. Right after the <code>removeDockWidget()</code> is called, <code>QMainWindow</code>’s geometry is set back to <code>(0,0,800,24)</code> with <code>setGeometry()</code>.</p> <p>What I want to achieve is to resize the <code>QMainWindow</code>’s height to 24 when the <code>DockWidget</code>’s removed. The <code>setGeometry()</code> seems to work since width and position change accordingly, but funnily enough, the height doesn’t budge. And that’s my problem really :)</p> <p>What’s the matter you think?</p> <p><a href="http://videobin.org/+50l/5ej.html" rel="nofollow">Here is a screen-cast</a> illustrating the issue at hand.</p> <p>NB: if i create the same scenario using a QWidget rather than QMainWindow, and using a <code>show()</code> or <code>hide()</code> on the child widget, then I can resize the parent with <code>adjustSize()</code> without problem: it seems the problem here above is QMainWindow specific.</p>

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