Re: Video overlay options
- From: dpekin@xxxxxxxxxxx
- Date: 24 Apr 2006 16:37:38 -0700
Thanks.
You may have to take an approach where you do it the old way for the older
hardware and the new way using dshow and one of the vmrs for newer
hardware.
That'll increase the scope of the project... So for dragging a rubber
rectangle, I'll need to generate a bitmap and call the SetAlphaBitmap
for the bitmap mixer interface for each mouse event? That seems like
quite a bit of overhead. Is this the most efficient way?
If you are using the hardware
overlay, drawing on top magically works but you cannot guarantee you will
get the overlay (HW acceleration might have been disabled or another app
like WMP may have it) and almost all graphics cards only have one overlay
surface.
I'm sorry, what's the hardware overlay? Both cameras are USB and I'm
using the windowless rendering mode. One camera displays lines
correctly in debug but they get erased in release mode. What's going
on there?
One thing in my favor is that we control the hardware on the machine.
If we can find a card that supports what I need, we'll use that.
No. I already answered that in the other thread where you replied to me
incorrectly instead of Nick. It has also been asked various times in the
past if you check Google Groups.
I've been searching the best I can.
Thanks again.
-Dave P.
.
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