// Create an array of 5 points for the 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 polygon fill.
ImGearRGBQuad igRGBQuadFill = new ImGearRGBQuad(40, 200, 40);
// Setup color for the polygon border.
ImGearRGBQuad igRGBQuadBorder = new ImGearRGBQuad(0, 0, 0);
// Create polygon with a solid border of width 10, and 33% opacity
ImGearARTPolygon igARTPolygon = new ImGearARTPolygon(
    igPoints, igRGBQuadFill, igRGBQuadBorder,
    ImGearARTPenStyle.SOLID, 10, (int)(0.33 * 255)
);
// Add the annotation to the ARTPage.
igARTPage.AddMark(igARTPolygon, ImGearARTCoordinatesType.IMAGE_COORD);

' Create an array of 5 points for the 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 polygon fill.
Dim igRGBQuadFill As New ImGearRGBQuad(40, 200, 40)
' Setup color for the polygon border.
Dim igRGBQuadBorder As New ImGearRGBQuad(0, 0, 0)
' Create polygon with a solid border of width 10, and 33% opacity
Dim igARTPolygon As New ImGearARTPolygon( _
 igPoints, igRGBQuadFill, igRGBQuadBorder, _
 ImGearARTPenStyle.SOLID, 10, CInt((0.33 * 255)))
' Add the annotation to the ARTPage.
igARTPage.AddMark(igARTPolygon, ImGearARTCoordinatesType.IMAGE_COORD)