How to resize a Mdi child?

[harveyab]

After much searching for an answer, and experimenting, I found this to work for me.

child->parentWidget()->resize(900, 700);
child->parentWidget()->updateGeometry();
child->show();
// child->showMaximized();

child->parentWidget()->resize(900, 700);
child->parentWidget()->updateGeometry();
child->show();
// child->showMaximized();

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You can use showMaximized() in place of show() and the (900, 700) will still be used if the window is later changed to normal.