ChangeDisplaySettings & CDS_FULLSCREEN

OpenGL
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What is the point of ChangeDisplaySettings/ChangeDisplaySettingsEx & CDS_FULLSCREEN?

I’ve tried creating windows on both Vista and XP. The windows - popup with no title bar etc, and sized to fill the entire monitor - offer exactly the same performance whether or not I use ChangeDisplaySettings. I was under the impression that this API call offered improved performance.

Is there any benefit to using these calls?

Thanks
Mark

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Edit - The above assumes I’m happy with the current screen resolution/bit depth & refresh rate.

3

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4

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