User`s guide

Creating and Executing Callback Functions
3 Acquire data — Start the video input object. E very 5 seconds, the object
executes the callback function associated with the timer event. This
function outputs the current memory available for frame storage and the
memory load statistic. When the amount of memory reaches the specified
lower limit, the callback function stops the acquisition.
start(vid)
ans =
ans =
Memory left for frames: 27 791 360
Memory load: 88
ans =
Memory left for frames: 26 316 800
Memory load: 88
ans =
Memory left for frames: 24 842 240
Memory load: 89
.
.
.
Memory left for frames: 29 696 00
Memory load: 97
Memory available for frames getting low.
Stopping acquisiti on.
4 Clean up — Always rem ove image acquisition objects from mem ory, and
the variables that re ference them, when you n o longer need them.
delete(vid)
clear vid
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