PNG-based animation

[soul_rebel]

I'd like to display a busy-animation in my program.

KDE-Themes come with process-working-kde.png and process-working.png, which contain a number of pictures "below" each other (see attachment). What is the easiest way of telling to Qt to make an animation out of this? It must be used in KDE-apps, but I couldn't find the corresponding code…

Thanks for your help!