Using OpenCV to control another programme [closed]

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Hi,

My aim is to use OpenCV to control a software media player. I would like to trigger events in the media player through movement and gesture recognistion using OpenCV. Currently i can track hand movement, find the contours and convex hull etc. I don't know how to use the tracking data collected by OpenCV and output it for use by another programme? Is this possible? For example, could the X, Y coordinates of a tracked finger be output from OpenCV to be recieved and used elsewhere?

Thanks, Gavin