Mercurial > sdl-ios-xcode
view docs/html/sdlinit.html @ 4249:429c8dd3175d SDL-1.2
Fixed bug #713
Don't clamp the mouse coordinates to the video surface size, instead clamp them to the last known window size.
This allows users to get the correct mouse coordinates even if they don't call SDL_SetVideoMode() in response to an SDL_VIDEORESIZE event (used as a hack to retain the OpenGL context on Windows and Linux after a window resize)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 27 Sep 2009 05:18:43 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_Init</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="General" HREF="general.html"><LINK REL="PREVIOUS" TITLE="General" HREF="general.html"><LINK REL="NEXT" TITLE="SDL_InitSubSystem" HREF="sdlinitsubsystem.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="general.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlinitsubsystem.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLINIT" ></A >SDL_Init</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN440" ></A ><H2 >Name</H2 >SDL_Init -- Initializes SDL</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN443" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN444" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_Init</B ></CODE >(Uint32 flags);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN450" ></A ><H2 >Description</H2 ><P >Initializes SDL. This should be called before all other SDL functions. The <TT CLASS="PARAMETER" ><I >flags</I ></TT > parameter specifies what part(s) of SDL to initialize.</P ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN454" ></A ><P ></P ><TABLE BORDER="1" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_TIMER</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="time.html" >timer</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_AUDIO</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="audio.html" >audio</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_VIDEO</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="video.html" >video</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_CDROM</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="cdrom.html" >cdrom</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_JOYSTICK</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initializes the <A HREF="joystick.html" >joystick</A > subsystem.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_EVERYTHING</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Initialize all of the above.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_NOPARACHUTE</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >Prevents SDL from catching fatal signals.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_INIT_EVENTTHREAD</TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" > </TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN494" ></A ><H2 >Return Value</H2 ><P >Returns <SPAN CLASS="RETURNVALUE" >-1</SPAN > on an error or <SPAN CLASS="RETURNVALUE" >0</SPAN > on success.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN499" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlquit.html" ><TT CLASS="FUNCTION" >SDL_Quit</TT ></A >, <A HREF="sdlinitsubsystem.html" ><TT CLASS="FUNCTION" >SDL_InitSubSystem</TT ></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="general.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="sdlinitsubsystem.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >General</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="general.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_InitSubSystem</TD ></TR ></TABLE ></DIV ></BODY ></HTML >