// Create an array of 5 points for the hollow polygon.
ImGearPoint[] igPoints = new ImGearPoint[5];
igPoints[0] = new ImGearPoint(20, 20);
igPoints[1] = new ImGearPoint(200, 40);
igPoints[2] = new ImGearPoint(200, 60);
igPoints[3] = new ImGearPoint(120, 120);
igPoints[4] = new ImGearPoint(20, 40);
// Setup color for the hollow polygon.
ImGearRGBQuad igRGBQuad = new ImGearRGBQuad(40, 200, 40);
// Create hollow polygon with a width of 10 and highlight off.
ImGearARTHollowPolygon igARTHollowPolygon = new ImGearARTHollowPolygon(
igPoints, igRGBQuad, 10, false
);
// Add the annotation to the ARTPage.
igARTPage.AddMark(igARTHollowPolygon, ImGearARTCoordinatesType.IMAGE_COORD);