// 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);

' Create an array of 5 points for the hollow polygon.
Dim igPoints As ImGearPoint() = New ImGearPoint(4) {}
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.
Dim igRGBQuad As New ImGearRGBQuad(40, 200, 40)
' Create hollow polygon with a width of 10 and highlight off.
Dim igARTHollowPolygon As New ImGearARTHollowPolygon( _
 igPoints, igRGBQuad, 10, False)
' Add the annotation to the ARTPage.
igARTPage.AddMark(igARTHollowPolygon, ImGearARTCoordinatesType.IMAGE_COORD)