ImageGear for C and C++ on Windows v21.0 - Updated
User Guide / How to Work with ... / Annotations / New Annotation API: ArtX / ArtX Annotation Marks / ART 3.0/ART 2.0 Marks / Polygon
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    Polygon
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    The Polygon mark enables the end user to cover areas of an image or document with a polygon.

    Edit Mode

    In Edit mode, end users create a mark as follows:

    1. Click the Polygon button.
    2. Click the point where the polygon starts, then drag the mouse to the location of a vertex and click the mouse button.
    3. Repeat step 2 to add the desired number of vertices to the polygon, clicking the mouse button to add a vertex.
    4. Double-click to complete the polygon.
    5. Right-click the mark after it has been created to activate the popup Edit menu.