A long value which represents the number of pixel columns added to the left edge margin.

Note: A value less than 0 indicates that vertical lines were removed from the left margin making the image smaller. A value greater than 0 indicates that vertical lines were added to the left margin making the image larger.

When the horizontalAddOnly flag is True and the value specified in the property is less than 0, no modification to the left margin of the current image will have occurred. In this case, the value returned by this property represents the adjustment that would have been applied to the left margin if Registration were permitted to remove pixels.

When Registration adds pixels to the image, the added pixels are always White.

ImageRegistrationResults Object