I don't think I'm imagining this. . .
When I add a horizontal line with an arrow, the resulting graphic seems to show a horizontal line without any slope at all:
ShapeObject shape2 = paragraph.AppendShape(200, 2, ShapeType.Arrow);
shape2.FillColor = Color.Black;
shape2.StrokeColor = Color.Black;
shape2.LineStyle = ShapeLineStyle.ThickThin;
shape2.StrokeWeight = 2;
shape2.HorizontalPosition = 100;
shape2.VerticalPosition = 0;
However, when I add just a plain line, it seems to slope slightly downward;
ShapeObject shape3 = paragraph.AppendShape(200, 2, ShapeType.Line);
shape3.FillColor = Color.Black;
shape3.StrokeColor = Color.Black;
shape3.LineStyle = ShapeLineStyle.ThickThin;
shape3.StrokeWeight = 2;
shape3.HorizontalPosition = 10;
shape3.VerticalPosition = 0;
Am I just imagining this??