Setting brightness for a LCD display

[Guest]

Hello everyone,

I'm using a LCD display and need to set the brightness. On a system running
Win 2000 or XP Pro, if I selelect Control Panel - Display - Settings -
Advanced, I can use the tab Utility Manager - Desktop Gamma Correction to set
the brightness. However on my XPe system this tab is missing. The chipset for
video on the motherboard is SIS651 (though I don't think this matters).
Could anyone please give me an idea what component am I missing in the build?

Thanks

 

[KM]

Sorin,

How about writing a small app that will do that job for you?
You can use ChangeDisplaySettingsEx API (check out VIDEOPARAMETERS structure).

Also, you can find the appropriate parameter(s) in the display driver inf file.

Regarding the missing components. You better check out the driver dependencies.

 

[Guest]

Well, the only solution for now is to use DarkAdapted for setting the
brightness.
http://www.adpartnership.net/DarkAdapted/index.html

Too bad the components coming in XPe do not provide the same functionality
they do in W2K Pro or XP Pro. SIS651 comes as a component in XPe and upon
checking dependencies is supposed to provide full functionality, which it
doesn't !