WmiMonitorBrightnessMethods is not supported in Windows 7. What could be possible reasons. I'm trying to use WmiSetBrightness to get and set brightness levels and values in c# application.
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What have you tried? I found this within 10 seconds on Google. http://stackoverflow.com/questions/8194006/c-sharp-setting-screen-brightness-windows-7 – Security Hound Jul 09 '12 at 18:42
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I tried it, but I'm getting it working in some systems but not all. In some systems I'm getting "Not Supported" when I used - WmiMonitorBrightnessMethods. So try to see how to get it working in all systems – Navya Jul 09 '12 at 19:37
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It could be simply that the PC doesn't support adjusting the brightness through software in the official way - for example, some laptops support it through the Mobility Centre, others only through proprietary software and others only through hardware keys.
If you're seeing the issue on some of a number of identical machines, make sure the graphics drivers are up to date.
Graham Wager
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