| Description | Hierarchy | Fields | Methods | Properties | 
type Tgpc_polygon = record
num_contours: integer; | 
hole: PIntegerArray; | 
contour: Pgpc_vertex_list_array; | 
num_contours: integer; | 
| 
 Polygon set structure  | 
hole: PIntegerArray; | 
| 
 Number of contours in polygon  | 
contour: Pgpc_vertex_list_array; | 
| 
 Hole / external contour flags  |