Increase/decrease monitor brightness

[Spent]

Can you tell me how to increase/decrease the brightness of the monitor through my Delphi Application.
Thank you

Good Luck !
Spent
mail:spentbg@yahoo.com

 

[Griffyn]

Hi Spent,

Unfortunately this is not possible. Nonitors are not programmable and can only be configured through their own controls.

 

[TonHu]

Some monitors have controlability by USB connections. The interface to the monitor is, however, manufacturer specific.
Another way could be to control the brightness, within certain limits, by changing the video-adapter settings. This would also be adapter specific, I guess.
So the best answer is already above, not possible with current monitor/vga-card specs.

HTH
TonHu

 

[Spent]

But the new game Colin McRae 3 can do this
There is an option Gamma level.When I increase it and minimize the game, the effect of the increased brightnes is still working.When I close the game the brightness is restored to the previous level.It is really possible,the question is how ?

Good Luck !
Spent
mail:spentbg@yahoo.com

 

[Griffyn]

Ok - what you're talking about is the video drivers artifically increasing the amount of colour each pixel has equally. So a RGB pixel with values of 100,100,140 would appear blue, and the video driver changes this to 101,101,141 or more probably something proportional. This is increasing gamma. I don't know how to do this in delphi. You would have to call a function in the windows API most probably. Have a search in google, or on Microsoft's site. Try and get a code snipped regardless of it's language, because it will be the same call in Delphi.

 

[cimnik2999]

Gamma is a minipulation of the pixels on the screen, not modifing the monitor. You can achive the effect by useing the technic above.