GetFirst

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PolyTree.GetFirst

Del.» function GetFirst: TPolyNode;

C++ » PolyNode* GetFirst();

C#  » public PolyNode GetFirst();

Ths method returns the first outer polygon contour if any, otherwise a null pointer.

This function is almost equivalent to calling Childs[0] except that when a PolyTree object is empty (has no children), calling Childs[0] would raise an out of range exception.

See Also

PolyNode.GetNext, PolyNode.ChildCount, PolyNode.Childs



Copyright ©2010-2012 Angus Johnson  -   Clipper version 5.1.0   -   Help file built on 17-February-2013