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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /> <meta name="GENERATOR" content="Quadralay WebWorks Publisher Professional Edition 6.0.7" /> <meta name="TEMPLATEBASE" content="Painter 8 Template" /> <meta name="LASTUPDATED" content="03/24/03 17:16:19" /> <title>Using Alpha Channels</title> <link rel="StyleSheet" href="document.css" type="text/css" media="screen" /> </head> <body> <script type="text/javascript" language="JavaScript"> <!-- function WWHUpdateFavorite(ParamHREF) { if ((parent != null) && (parent.WWHelpFrameSet != null)) { parent.WWHelpFrameSet.fUpdateFavorite(ParamHREF); } } function WWHSyncTOC(ParamHREF) { if ((parent != null) && (parent.WWHelpFrameSet != null)) { parent.WWHelpFrameSet.fSyncTOC(ParamHREF); } } function WWHShowPopup(ParamContext, ParamLink, ParamEvent) { if ((parent != null) && (parent.WWHelpFrameSet != null)) { parent.WWHelpFrameSet.fShowPopup(ParamContext, ParamLink, ParamEvent); } } function WWHHidePopup() { if ((parent != null) && (parent.WWHelpFrameSet != null)) { parent.WWHelpFrameSet.fHidePopup(); } } function WWHClickedPopup(ParamContext, ParamLink) { if ((parent != null) && (parent.WWHelpFrameSet != null)) { location.href = parent.WWHelpFrameSet.fClickedPopup(ParamContext, ParamLink); } } // --> </script> <script type="text/javascript" language="JavaScript"> <!-- var WWHelpHREF = location.href; WWHUpdateFavorite(WWHelpHREF); // --> </script> <a name="pagetop"> <table border="0"> <tr> <td width="23"> <a href="13-Channels.html"> <img alt="Previous Document" border="0" src="images/prev.gif" width="23" height="21" /> </a> </td> <td width="23"> <a href="13-Channels3.html"> <img alt="Next Document" border="0" src="images/next.gif" width="23" height="21" /> </a> </td> </tr> </table> </a> <table border="0"> <tr width="400"></tr> <tr width="400"></tr> <tr width="400"></tr> <tr width="400"></tr> <tr width="400"></tr> <tr width="400"></tr> <tr> <td width="40"></td> <td width="400"></td> </tr> </table> <blockquote> <h1 class="Heading1"> <a name="1012688"> </a><font color="" >Using Alpha Channels</font> </h1> <p id="1012694" class="Body"> <a name="1012694"> </a>The primary function of an alpha channel is to store a selection you might want later. You can save multiple selections in a channel. </p> </blockquote> <table border="0"> <tr> <td width="23"> <a href="13-Channels.html"> <img alt="Previous Document" border="0" src="images/prev.gif" width="23" height="21" /> </a> </td> <td width="23"> <a href="13-Channels3.html"> <img alt="Next Document" border="0" src="images/next.gif" width="23" height="21" /> </a> </td> <td width="23" > <a href="#pagetop"> <img SRC="images/BtnBacktoTop.gif" ALT="Back to Top" border="0" height="21" width="23" /> </a> </td> </tr> </table> <div id="WWHelpPopupDIV" style="position: absolute ; z-index: 1 ; visibility: hidden ; top: 0px ; left: 0px"> <script type="text/javascript" language="JavaScript"> <!-- if ((parent != null) && (parent.WWHelpFrameSet != null)) { if (document.all != null) // Non-Netscape browser { document.writeln(parent.WWHelpFrameSet.mPopup.fFormat("Popup")); } } // --> </script> </div> </body> </html>