XGA-Projectors & HD

[Damage Inc.]

If I have an XGA-projector, which would have a resolution of 1024x728,
and then send an HD-signal into it, would it be able to display 720p?

I've been told and have read that they can.

However, it really made me wonder:
It makes sense for the vertical dimension, as it can display up to 768 pixels, so 720 pixels should be possible.
But then for the horizontal dimension, it can do 1024 pixels, but for 720p that dimension would be 1280 pixels.
Would this be a problem or would it just... lower the horizontal pixels?
I couldn't imagine it cutting off the image, that would be even worse...

This would of course also be in a 16:9-mode.
I don't know if that means it would have extra pixels horizontally
as it doesn't use the excess used for 4:3 above and below the 16:9-image.
But I doubt that too cause I still notice my projector projecting light on the unused areas...