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<html><head><!- Copyright (c) Go Ahead Software Inc., 1995-2000. All Rights Reserved. -><title>ejOpenEngine -- GoAhead Embedded JavaScript</title><link rel="stylesheet" href="../../../style/doc.css" type="text/css"></head><body> <table width="550"> <tr><td><TABLE border=0 width=100% cellspacing=0 cellpadding=0 CLASS="apiTitle"><TR> <td class="titleLeft" align=left width="33%">ejOpenEngine</TD><td class="titleCenter" align=center width="33%"><b>GoAhead JavaScript API</b></TD><td class="titleRight" align=right><B>GoAhead EMF</B></TD></TR></TABLE><HR><h2>Synopsis</h2><p>Open a JavaScript interpreter session.</p><h2>Prototype</h2><pre>#include "ej.h"int <b>ejOpenEngine</b>(sym_fd_t variables, sym_fd_t functions);</pre><h2>Parameters</h2><table width=100% BORDER="0" CELLPADDING="0" CELLSPACING="0"> <TR> <TD VALIGN="TOP" width="8%">variables</TD><TD width="92%"> Symbol table for variables.</TD></TR><TR> <TD VALIGN="TOP" width="8%">functions</TD><TD width="92%">Symbol table for functions.</TD></TR></table><h2>Description</h2><P>To use JavaScript, you must first open an interpreter session with <i>ejOpenEngine</i>. JavaScript interpreters usually have their own variable and global function name space. To share a variable or function name space, pass a symbol table into <b>ejOpenEngine</b> in the <i>variable</i> or <i>function</i> parameters. If either of these parameters are set to NULL, the symbol table will be created automatically.</P><p>Use <b>ejCloseEngine</b> to close the interpreter when finished. <h2>Return Value</h2><p>Handle for the JavaScript interpreter.</p><h2>Example</h2><pre>if (ejOpenEngine(NULL, NULL)< 0) { /* Can't open interpreter */ return -1;}</pre><h2>Stability Classification</h2><p>Stable.</p><h2>See Also</h2><p> <A href="../../../over/ejs.htm">JavaScript</A>, <A href="../../../over/asp.htm">Active Server Pages</A> <A href="ejCloseEngine.htm">ejCloseEngine</A> <A href="ejEval.htm">ejEval</A> </p></td></tr></table></body></html>⌨️ 快捷键说明
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