Racalac

27th April 2003 20:33 UTC

Method behind AVS overlay
Hello,
First, I'm new to these boards, so forgive me if this is the wrong forum for this question. I'll cheerfully move it to the correct one.

My question is about the AVS overlay mode (it works great for me, this is not a "how do i turn it on" post). I've searched all the winamp forums (and google) to no avail, so I'm posting.

How would one add a similar mode to AVS overlay mode in an application? I'm guessing it uses DirectDraw (7?) overlay surfaces, and have played with these, but can't seem to draw to the desktop background (yes the destination color key and desktop color match), it draws on top of everything else. If anyone has any tips/code/links for me, I'd appreciate it. Any links to a DirectX help forum that might be able to answer this would also be welcome.

Thanks folks.

Racalac

UnConeD

27th April 2003 20:35 UTC

Make sure the key is exactly the same, if you're off one value it won't work.

This isn't exactly the 'wrong' forum in terms of topic, but you won't find many programmers here. Try flipcode.com, there's lots of knowledgable programmers there.

Overlay mode is commonly used by movie players (so that the hardware performs the blitting/rescaling rather than the software), maybe you can look into that.

Racalac

27th April 2003 22:55 UTC

Okay, I'll check out flipcode, thanks. I guess I shouldn't expect the AVS author(s) to reply :)

Racalac

dirkdeftly

28th April 2003 01:30 UTC

But...
http://forum.sonique.com/showthread.php?threadid=5800

(sorry, just had to mention that :blah: )

Racalac

28th April 2003 19:20 UTC

I thought I'd be helpful and post a link that answered my question: http://www.angelcode.com/source/

The Overlay Demo on that page was perfect. My attempts were only a little off :)

Racalac

Deamon

29th April 2003 09:30 UTC

GREAT! I love it when new people to these forums ask their questions politely, and keep clear what it exactly is they want. Keep it up (y) :D