Fwd: SetDeviceGammaRamp

[Tom Wickline]

Forward from wine-patches

---------- Forwarded message ----------
From: 郭强 
Date: Tue, Mar 10, 2009 at 1:38 PM
Subject: SetDeviceGammaRamp
To: [e-mail]

Hi,
I got a question about how to use SetDeviceGammaRamp Function.

As in SDK, Remarks said:'*SetDeviceGammaRamp* succeeds only for devices with
drivers that support downloadable gamma ramps in hardware.'
And I tried in my pc, the function return FALSE. but in my friend's pc, it
work well.
Maybe my pc doesnot support downloadable gamma ramps.

So How do I know if my device support that?
What's the definition of downloadable gamma ramps ?
And what kind of device support that?

Thanks so much!

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