[Qt-interest] MDI'd OpenGL

[Claudio Vaccani]

Hello everyone,
after switching from Qt 4.3.3 to 4.5.2 I'm facing a little problem here
with an application that uses a QMdiArea to display a number of
opengl-based plots. Everything works fine as long as the application
window is visible during startup (more precisely when the first plot is
opened). If, however, I minimize the application window before the first
plot shows up, I end up with an empty subwindow that looks like it
didn't get a valid OpenGL context and that reacts quite strangely to
user input(can't be moved, minimize/maximize/close buttons hardly work).

Any idea on what I'm doing wrong or how to fix this would be greatly
appreciated.

    Thanks
       Claudio