mci-step

Arguments: device &key notify-p wait-p (frames 1) reverse-p

Steps device by the indicated number of frames forward unless reverse-p is true. If the :wait-p argument is specified true, this function will not return until the action is completed. If nil, this function is run asynchronously. If notify-p is true, mci-notify will be called when this function completes.

See cg-mci.htm for information about MCI support in Common Graphics.

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Created 2019.8.20.