1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3 4<head> 5<META http-equiv="Content-Type" content="text/html; charset=windows-1252"> 6<META name="GENERATOR" content="Microsoft FrontPage 5.0"> 7<META http-equiv="Content-Style-Type" content="text/css"> 8<LINK rel="stylesheet" type="text/css" href="../CSS/revolution.css"> 9<title>DEMOInit</title> 10</head> 11 12<body> 13 14<h1 align="left">DEMOInit</h1> 15 16 17<h2>C Specification</h2> 18 19<dl> 20<dd><pre><CODE>#include <demo.h></CODE></pre> 21 </dd> 22<dd><pre><CODE>void DEMOInit(<A href="../gx/Structures/GXRenderModeObj.html">GXRenderModeObj</A>* mode)</CODE></pre> 23 </dd> 24</dl><h2>Arguments</h2> 25<TABLE border="1" cellpadding="3" cellspacing="0.1"> 26 <tr> 27<TD width="120" bgcolor="#ffffe8"><em><strong><CODE>mode</font></strong></em></TD> 28<TD width="520"><A href="../gx/Framebuffer/RenderMode.html">Render mode</A></TD> 29 </tr> 30</TABLE> 31<h2>Return Values</h2> 32 33<p>None.</p> 34<H2>Description</H2> 35<P>The DEMO library provides a common application framework that is used in many of the example demos distributed with the Revolution SDK. The source code for the DEMO library is also distributed with the SDK.</P> 36<P>This function initializes the components of the operating system and device drivers. The <CODE><EM><STRONG>mode</STRONG></EM></CODE> argument allows the program to overwrite the default render mode. All of the main memory is then allocated into a heap that can be managed with the <a href="../os/Alloc/OSAlloc.html"><code>OSAlloc</code></a> function.</P> 37<P>This function initializes the video controller with a 640x480 interlaced display and a 60 Hz refresh rate.</P> 38<H3>Example Program</H3> 39<P><CODE>#include <demo.h><BR> #include <math.h><BR> <BR> void main ( void )<BR> {<BR> // initialize render settings <BR> <A href="DEMOInit.html">DEMOInit</A>(NULL);<BR> <BR> while ( ! ( DemoPadGetButton(0) & PAD_BUTTON_MENU ) )<BR> {<BR> // get pad status<BR> DEMOPadRead( );<BR> <BR> // Draw scene<BR> <A href="DEMOBeforeRender.html">DEMOBeforeRender</A>( );<BR> GlobalSceneDraw( &myGlobal );<BR> <A href="DEMODoneRender.html">DEMODoneRender</A>( );<BR> }<BR> <BR> OSHalt("End of demo");<BR> }<BR></CODE></P> 40 41 42<h2>See Also</h2> 43 44<p><a href="DEMOBeforeRender.html"><CODE>DEMOBeforeRender</CODE></a><br> <a href="DEMODoneRender.html"><CODE>DEMODoneRender</CODE></a><br> <a href="DEMOSwapBuffers.html"><CODE>DEMOSwapBuffers</CODE></a><br> <a href="DEMOGetRenderModeObj.html"><CODE>DEMOGetRenderModeObj</CODE></a><br> <a href="DEMOGetCurrentBuffer.html"><CODE>DEMOGetCurrentBuffer</CODE></a></p> 45<H2>Revision History</H2> 46<P>03/01/2006 Initial version.</P> 47</body> 48</html>