Get image from frame

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Check: http://www.altera.com/literature/an/an527.pdf (http://www.altera.com/literature/an/an527.pdf)

All of the functions (as far as I can tell) are listed there as well as descriptions for each function.

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Thank You for the link. It was certainly helpful but I still quite confuse with this function:

========

int alt_video_display_buffer_is_available(alt_video_display* display);

This function returns the next free frame buffer available for display. The

function returns a condition code of 0 if an empty buffer is found; any

other return value indicates failure. The function accepts the following

parameter:

■ display: This variable is a pointer to a data structure that keeps

track of all of the frame buffer information, including the start

addresses for all of the frame buffers.

========

It says that it return 0 or other number indicates failure. Then, my question is, where is the frame I want goes? I need the frame to do analysis before display. Thank you.