globally / permanently change webcam settings

hi,
i want to change especially the brightness settings of a webcam.
Does anyone know a way that lets me adjust the settings globally and permanently?(so that those settings apply to all programs that will use the cam without having to re-adjust)
The cam itself is a quite old no-name model. The basic driver which makes it available to applications on the systems miracously still worked though.

If the cam is that old, its entirely possible that option was never available...

Tews said:

If the cam is that old, its entirely possible that option was never available...

Click to expand...

ok,.... let me rephrase the question ; )
does anyone know about a possibility how to adjust the brightness of a webcam on a global level (not per application) in case the webcam itself supports image settings (brightne, contrast, gamma etc.).

what kind of webcam is it?