how to resize a window when its moving

[gegebelzebuth]

Hello,

I'm encountering a little problem,
as you cans see in the title i want to resize a windowed qwidget when i'm moving it.

of course i tried this

void mywidget::moveEvent ( QMoveEvent * event )
{
        resize(100,100);
}

void mywidget::moveEvent ( QMoveEvent * event )
{
        resize(100,100);
}

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but the window only resizes when i release the mouse

Does anybody can help me ?

thank you