ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / Core Component API Reference / Core Component Enumerations Reference / enumROI_IS
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    enumROI_IS
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    Specifies the types of non-rectangular Region of Interest (ROI).

    Values:

    IG_ROI_IS_RECTANGLE The ROI is a rectangle.
    IG_ROI_IS_ELLIPSE The ROI is an ellipse.
    IG_ROI_IS_POLYGON The ROI is a polygon.

    Remarks:

    These modes are used with IG_IP_NR_ROI_to_HIGEAR_mask and describe what kind of non-rectangular ROI is passed in.