Video Capture Callbacks
Posted on 1997-01-01
I am working on the finishing touches of my first video capture, and C++,
program. I am using the AVICap class and want to modify the video input.
I have created a callback using the capSetCallbackOnVideoStream macro.
Everything works except I am having diffuculty accessing the actual pixel
data in the frame buffer. The buffer is passed to the callback function as
a LPVIDEOHDR structure. The lpData member of the structure contains the
address of the video buffer.
I always get confused using pointers in C. Is there a way that I can
convert the address in the lpData member to a (char huge *) type? I seen to
be converting the address of the member, and not the address stored in the
Any help would be greatly appreciated! Thanks in advance.