capture frame and do the manipulation

[codex77]

I am doing realtime video manipulation software... so far, I am capturing frame from a camera, saving it to a disk and then retriveing it, converting to array of integers, and then do the manipulation.
Here I get about 2fps which is not acceptable.
Is there way to grab a frame and point where the image is the RAM and change pixels there?

in VC++ or VB6

thanks

 

[teriviret]

You could use DirectShow, and write your own transform or renderer filter. On the other hand, since DirectShow is fairly complicated and has a steep learning curve, this might be too much to ask. A better way might be to find a similar project someone else has done, study it, and modify it for your own use.