EVOLUTION-MANAGER
Edit File: Foreign-internal.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Internal Versions of the Foreign Function Interface</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for Foreign-internal {base}"><tr><td>Foreign-internal {base}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Internal Versions of the Foreign Function Interface</h2> <h3>Description</h3> <p>Internal versions of <code><a href="CallExternal.html">.Call</a></code> and <code><a href="CallExternal.html">.External</a></code>. </p> <h3>Usage</h3> <pre> .Call.graphics(.NAME, ..., PACKAGE) .External.graphics(.NAME, ..., PACKAGE) .External2(.NAME, ..., PACKAGE) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>.NAME</code></td> <td> <p>a character string giving the name of a C function or Fortran subroutine, or an object of class <code>"<a href="getNativeSymbolInfo.html">NativeSymbolInfo</a>"</code>, <code>"<a href="getNativeSymbolInfo.html">RegisteredNativeSymbol</a>"</code> or <code>"<a href="getNativeSymbolInfo.html">NativeSymbol</a>"</code> referring to such a name.</p> </td></tr> <tr valign="top"><td><code>...</code></td> <td> <p>arguments to be passed to the foreign function.</p> </td></tr> <tr valign="top"><td><code>PACKAGE</code></td> <td> <p>see the corresponding argument of <code><a href="CallExternal.html">.Call</a></code>.</p> </td></tr> </table> <h3>Details</h3> <p>The <code>.graphics</code> versions of <code>.Call</code> and <code>.External</code> are used when calling code which makes low-level graphics calls. They take additional steps to ensure that the device driver display lists are updated correctly. </p> <p><code>.External2</code> is an enhanced version of <code>.External</code> which passes additional information in more arguments. </p> <p><code>.Call.graphics</code> is used in package <span class="pkg">grid</span> and <code>.External.graphics</code> and <code>.External2</code> are used in package <code>graphics</code>. </p> <p>These are primitive functions. </p> <h3>Value</h3> <p>An <span style="font-family: Courier New, Courier; color: #666666;"><b>R</b></span> object. </p> <h3>See Also</h3> <p><code><a href="CallExternal.html">.Call</a></code>.</p> <hr /><div style="text-align: center;">[Package <em>base</em> version 3.6.0 <a href="00Index.html">Index</a>]</div> </body></html>