Efficient way to access off-screen buffer memory

I have a graphic application the draw images into off-screen buffer. 1000 times in a second the buffer pixels should be captured to memory. ( I need to pass the off-screen pixels to another application that compress the frame.) I have a code sample that uses CreateDIBSection and pass pBits. This way pBits provides me direct access to the pixels.

What is the most efficient way to do it?

if(hDesktopCompatibleDC==NULL || hDesktopCompatibleBitmap == NULL)
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Actually, memory DCs (that's what you're creating when you call createCompatibleDC) are pretty fast.

You don't say which version of windows you're running on, or your targit screen resolution, type of machine, etc, so it's hard to suggest alternatives, but, yeah, that's a pretty good way to go.


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Game Programming

From novice to tech pro — start learning today.