[PyQt] Modal QMainWindow

[ARCHER, Thomas]

A quick query someone might be able to help me with. I've got a QMainWindow (displaying vtk graphics), which spawns a new QMainWindow (displaying further graphics). I've managed to make this window modal, by setting the window flags, but what I'd really like is for it to block code flow until it's closed, in the same way a QDialog does when you call exec_(). Is there any way to do this, if not what's the standard practice for passing data between two windows like this? I would use a QDialog, but the two windows have to resemble each other quite closely and have menu's and toolbars. 

Regards,
Tom

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