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

[Please do not mail me a copy of your followup]

(Richard) legalize+jeeves@xxxxxxxxxxxxxxxxx spake the secret code
<OqPkITKQHHA.3344@xxxxxxxxxxxxxxxxxxxx> thusly:

[Please do not mail me a copy of your followup]

"Sam Brown" <subiNOSPAM@xxxxxxxxxxxxxxxxxxxxxxxxxx> spake the secret code
<VcGdnZGZoZ8fUiXYnZ2dnUVZ8smonZ2d@xxxxxxxxx> thusly:

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.

I don't believe this to be true; you have to extend the desktop onto
it for GDI to see it. DirectX doesn't care about which devices are
attached to the desktop.

Looks like you're right and I'm wrong, if the caps viewer is any way
to judge. When I don't extend the desktop to the 2nd monitor on my
dual head card, it only displays 1 adapter.

I wonder what happens when you have two cards in your machine but the
desktop isn't extended to the 2nd card....

ISTR that there were situations where you could create a device in
exclusive mode on a monitor that was not attached to the desktop...
--
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