Re: How do you access second display adapter without being a desktop extension?

I'm under the impression I should be able to use the second display
adapter on a multiport video card independent of the desktop display
adapter. Is this true? Everytime I try to create an DX device for the
second adapter I get an error. Is it possible to access the second
display adapter without being an extension of the desktop? If so, could
be point me to any information that shows how to do this?

To show up in the adapter ennumeration, the device needs to have
the "Extend my Windows Desktop onto this monitor" option checked
in the display settings. Otherwise, DirectX can't see it.

It you already have this, then check that you aren't trying to
create your second device with the HWND used for your first.
It needs it's own window.

Your second device may also not have the caps of your first -
don't assume that the create struct for the first device will
work with the second. For instance, I work with a system that
uses the same dimensions on bothe devices, but different refresh
rates.

Cheers,

- SamB


.

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