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>GXGetViewportv</title> 10</head> 11 12<body> 13 14<h1 align="left">GXGetViewportv</h1> 15 16<h2>C Specification</h2> 17 18<dl> 19<dd><pre><CODE>#include <revolution/gx.h></CODE></pre> 20 </dd> 21<dd><pre><CODE>void GXGetViewportv( f32* vp );</CODE></pre> 22 </dd> 23</dl> 24 25<h2>Arguments</h2> 26<TABLE border="1" cellpadding="3" cellspacing="0.1"> 27 <tr> 28<TD width="120" bgcolor="#ffffe8"><em><strong><CODE>vp</font></strong></em></TD> 29<TD width="520">Pointer to a floating point type array. Minimum size is <code>GX_VIEWPORT_SZ</code>.</TD> 30 </tr> 31</TABLE> 32<h2>Return Values</h2> 33 34<p>None.</p> 35<H2>Description</H2> 36<P>This function gets the current viewport parameters and places them in array <code><em><strong>vp</strong></em></code>. </P> 37<P>The function <a href="GXSetViewportv.html"><code>GXSetViewportv</code></a> sets the viewport in vector form. The order of parameters in <em><strong><code>vp</code></strong></em> corresponds to the order of parameters in <a href="GXSetViewport.html"><code>GXSetViewport</code></a>. The array returned by <a href="GXGetViewportv.html"><code>GXGetViewportv</code></a> can be supplied as an argument to <a href="GXProject.html"><code>GXProject</code></a>.</P> 38<H2>Example</H2> 39<P><code>f32 vp[GX_VIEWPORT_SZ];<br> <br> <a href="GXGetViewportv.html">GXGetViewPortv</a>( vp );<br> vp[2] = 512.0f; // change width to 512<br> <a href="GXSetViewportv.html">GXSetViewportv</a>( vp );</code></P> 40<P>The viewport is typically set using parameters derived from the current render mode. For more information, see <a href="../Framebuffer/RenderMode.html"><code>Render Modes</code></a>.</P> 41 42<h2>See Also</h2> 43 44<p><a href="../Culling/GXSetScissor.html">GXSetScissor</a><br> <a href="../../mtx/Projection/MTXFrustum.html">MTXFrustum</a><br> <a href="../Framebuffer/RenderMode.html">Render Modes</a></p> 45<H2>Revision History</H2> 46<P>03/01/2006 Initial version.</P> 47</BODY> 48</HTML>