On Thu, Feb 28, 2008 at 12:22:34AM +0100, Rafael Fernández López wrote:
> +  QPalette tipPal(d->tipText->palette());
> +  tipPal.setColor(QPalette::Base, Qt::transparent);
> +  d->tipText->setPalette(tipPal);
>  
no idea about the general appraoch, but just
  QPalette tipPal;
is more efficient and has the same effect.

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