Mercurial > sdl-ios-xcode
view docs/html/sdlsetcliprect.html @ 809:dba98fb391e7
Date: Tue, 13 Jan 2004 19:25:37 +0300
From: Dmitry Yakimov
Subject: [SDL] [PATCH] SDL bug patch
Let me introduce 2 fixes to SDL.
1. Preventing great slowdown on fast machines while hardware
flipping (it's obviously bug).
2. Setting up 85 Hz of monitor if supported. The reason is that
Win98 by default sets lowest frequency 60 Hz.
And we can't set up maximum frequency because some users can have
wrong monitor drivers.
This is important for shareware and commercial programs.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 11 Feb 2004 16:10:16 +0000 |
parents | 355632dca928 |
children |
line wrap: on
line source
<HTML ><HEAD ><TITLE >SDL_SetClipRect</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Video" HREF="video.html"><LINK REL="PREVIOUS" TITLE="SDL_SetAlpha" HREF="sdlsetalpha.html"><LINK REL="NEXT" TITLE="SDL_GetClipRect" HREF="sdlgetcliprect.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlsetalpha.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlgetcliprect.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLSETCLIPRECT" ></A >SDL_SetClipRect</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN2199" ></A ><H2 >Name</H2 >SDL_SetClipRect -- Sets the clipping rectangle for a surface.</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN2202" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN2203" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >void <B CLASS="FSFUNC" >SDL_SetClipRect</B ></CODE >(SDL_Surface *surface, SDL_Rect *rect);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2209" ></A ><H2 >Description</H2 ><P >Sets the clipping rectangle for a surface. When this surface is the destination of a blit, only the area within the clip rectangle will be drawn into.</P ><P >The rectangle pointed to by <TT CLASS="PARAMETER" ><I >rect</I ></TT > will be clipped to the edges of the surface so that the clip rectangle for a surface can never fall outside the edges of the surface.</P ><P >If <TT CLASS="PARAMETER" ><I >rect</I ></TT > is <TT CLASS="LITERAL" >NULL</TT > the clipping rectangle will be set to the full size of the surface.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN2217" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlgetcliprect.html" ><TT CLASS="FUNCTION" >SDL_GetClipRect</TT ></A >, <A HREF="sdlblitsurface.html" ><TT CLASS="FUNCTION" >SDL_BlitSurface</TT ></A >, <A HREF="sdlsurface.html" ><SPAN CLASS="STRUCTNAME" >SDL_Surface</SPAN ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlsetalpha.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlgetcliprect.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_SetAlpha</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="video.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_GetClipRect</TD ></TR ></TABLE ></DIV ></BODY ></HTML >