title: How to get the size of an arrowhead line in VSTO Addin?
body: <p>We are developing a Powerpoint VSTO Addin and need to programmatically calculate the real width and height of an Arrowhead in Powerpoint.
  Our code may look like below:</p>
  <pre><code>freeFormShape.Line.EndArrowheadStyle = MsoArrowheadStyle.msoArrowheadTriangle;
  freeFormShape.Line.EndArrowheadLength = MsoArrowheadLength.msoArrowheadShort;
  freeFormShape.Line.EndArrowheadWidth = MsoArrowheadWidth.msoArrowheadNarrow;
  </code></pre>
  <p>Is there any way to know the size of End arrowhead triangle in points?</p>
  <p>Thank you</p>