Brightness controls

I'm sorry for posting such a stupid question, but I can't seem to figure out how I can change the brightness setting for a video file with BSPlayer, so I was wondering if anyone can help me.
Changing this in the windows settings doesn't change anything in the video.
Any help would be really appreciated!!

Greets, Pol

[Quietseb]

As far as I know the below information is correct, but I didn't re-check everything.

you've got 3 possibilities to set the brightness settings (and other settings as well), all of them require a movie to be playing.

1. right-click on the movie, options, filters, <video filter name (divx, xvid, ffdshow...>. This pops up the configuration window of the video filter. The filter probably has some options to set brightness. This is a system-wide setting.
2. right-click on the movie, video, color controls.
   This sets the hardware brightness and color controls on the overlay. This is also a system-wide setting, if I remember correctly.
3. go to preferences, video. You can choose settings for divx3, divx4+, ffdshow. (although I remember it was not completely efficient some time ago for divx4+, can't tell if this has changed since this post ). These settings are only for use in bsplayer (and stored in bsplayer's config file), not system-wide.