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Specifies the relative positions of text and image in an annotation.
CaptionAboveIcon: 3;
Caption above the image.
CaptionAtLeft: 5;
Caption to the left of the image.
CaptionAtRight: 4;
Caption to the right of the image.
CaptionBelowIcon: 2;
Caption below the image.
CaptionOnly: 0;
No image; caption only.
CaptionOverlaid: 6;
Caption overlaid directly on the image.
ImageOnly: 1;
No caption; image only.