<html> <head> <script type="text/javascript" src="../../../../../../Scripts/jquery.js"> </script> <script type="text/javascript" src="../../../../../../Scripts/SyntaxHighlighter/scripts/shCore.js"> </script> <script type="text/javascript" src="../../../../../../Scripts/SyntaxHighlighter/scripts/shBrushDelphi.js"> </script> <script type="text/javascript" src="../../../../../../Scripts/SyntaxHighlighter/scripts/shBrushCpp.js"> </script> <script type="text/javascript" src="../../../../../../Scripts/SyntaxHighlighter/scripts/shBrushCSharp.js"> </script> <link type="text/css" rel="stylesheet" href="../../../../../../Scripts/SyntaxHighlighter/styles/shCoreDefault.css"> <link type="text/css" rel="stylesheet" href="../../../../../../Scripts/SyntaxHighlighter/styles/shThemeDefault.css"> <title>GetFirst</title> <link rel="stylesheet" href="../../../../../../Styles/default.css" type="text/css"> <script type="text/javascript" src="../../../../../../Scripts/bootstrap.js"> </script> </head> <body bgcolor="#FFFFFF"> <!-- THIS FILE HAS BEEN AUTOMATICALLY PROCESSED FROM A SOURCE COPY --> <!-- DO NOT EDIT MANUALLY !!! --> <table class="Banner" cellspacing="0" cellpadding="0" border="1" bordercolorlight="#303080" bordercolordark="#7070B0"> <tr> <td class="Banner" nowrap=""><a href="../../../../../_Body.htm" class="Banner"><img src="../../../../../../Images/_Home.gif" align="absmiddle">Home</a> </td> <td class="Banner" nowrap=""><a href="../../../_Body.htm" class="Banner"><img src="../../../../../../Images/_Unit.gif" align="absmiddle">ClipperLib</a> </td> <td class="Banner" nowrap=""><a href="../_Body.htm" class="Banner"><img src="../../../../../../Images/_Class.gif" align="absmiddle">PolyTree</a> </td> <td class="Banner" width="100%" align="right"><img src="../../../../../../Images/_Project_Logo.gif" align="absmiddle"> </td> </tr> </table> <h1>PolyTree.GetFirst</h1> <p class="Decl"><span class="Comment"> Del.» </span><b>function</b> GetFirst: TPolyNode;</p> <p class="Decl2"><span class="Comment"> C++ »</span> PolyNode* GetFirst();</p> <p class="Decl3"><span class="Comment"> C# »</span> <b>public <span class="CSharp">PolyNode</span></b> GetFirst();</p> <p class="Body"> This method returns the first outer polygon contour if any, otherwise a null pointer.<br><br> 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. </p> <h2 id="Auto-SeeAlso">See Also</h2> <p class="Body"><a href="../../PolyNode/Methods/GetNext.htm">PolyNode.GetNext</a>, <a href="../../PolyNode/Properties/ChildCount.htm">PolyNode.ChildCount</a>, <a href="../../PolyNode/Properties/Childs.htm">PolyNode.Childs</a></p> <p class="Copyright" id="auto"> <br><br> Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014 <br><br> </p> </body> </html>