Some years ago I recall acquiring some sample source code for making a simple skinned (non-standard) window. It may have been included with the Qt download (3.xx or 4.xx I think) or was possibly provided by a 3rd party.

It was extremely simple. A bitmap was used for the UI. The bitmap (i.e. the UI) resembled a minimal mp3 player type of device (or something similar). It had only 3 or 4 buttons as I recall. It did not do anything, as I recall, but button presses did send messages to the handlers.

I would be extremely grateful if someone can direct me to this example.