box-left-center

Arguments: box &optional position-to-return

Returns the position which is the center of the left edge of box, rounding down if necessary. If position-to-return is supplied and non-nil, it must be a position object (see make-position). In that case, position-to-return is returned, after being modified to be the right center of box. If position-to-return is nil, a new position object is returned.

See the description of the box class for general information on boxes.

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Created 2019.8.20.