Polygon Annotation Object

Note: This topic is for Document/Medical only.

The polygon annotation object (ANNOBJECT_POLYGON) is an array of points that define the vertices of a polygon. With the automated functions, each line segment is formed with a mouse click, and the object is completed on a double click, which closes the polygon with a line from the last point to the first point.

The points can be changed using the AnnGetPointX method, AnnGetPointY method and AnnSetPoints method.

With low-level functions, you must provide the points that define the shape of the object. Other applicable properties have the following defaults, which you can change:

Visible	Defaults to FALSE. It can be changed using the AnnSetVisible method.
Selected	Defaults to FALSE. It can be changed using the AnnSetSelected method.
Foreground color	Defaults to black. It can be changed using the AnnSetForeColor method.
Background color	Defaults to white. It can be changed using the AnnSetBackColor method.
Line width	Defaults to 1. It can be changed using the AnnSetLineWidth method. (Values equate to a minimum of 1 pixel when displayed.)
Line style	Defaults to solid. It can be changed using the AnnSetLineStyle method.
Fill pattern	Defaults to solid. It can be changed using the AnnSetFillPattern method.
Fill mode	Defaults to transparent. It can be changed using the AnnSetFillMode method.
Polygon fill mode	Defaults to winding. It can be changed using the AnnSetPolyFillMode method.
Tag (identifier)	Defaults to 0. It can be changed using the AnnSetTag method.
Window handle	Defaults to NULL or the handle inherited from the container. It can be changed for all objects using the AnnSetWnd method.
User mode	Defaults to design mode or the mode inherited from the container. It can be changed for all objects using the AnnUserMode property.