So, I was just moving a running video window from one screen to another, when I noticed a new feature in Windows Vista that nobody told me about.

Have you ever had a video stream running in a window and moved it from one monitor to another? Have you noticed how the video only appears on one screen at a time? So if you have 90% of a video window on one screen and 10% of it on the other, the screen with 90% of the video will show its portion of the stream but the other will show empty black space. When you move the window to the other screen, the visible portion switches to the other screen when it has the majority of the pixels.

I was performing such a drag-and-drop operation just a moment ago, and realized the video was not affected. It spanned across the two monitors just as I always thought it should.

I don’t know whether it’s Vista, SP1, DirectX 10, or DreamScene making it possible, and it’s kind of useless to me, but it’s still pretty cool.