Mercurial > sdl-ios-xcode
view docs/html/sdlactiveevent.html @ 3957:b1d5b56aa549 SDL-1.2
Date: Mon, 4 Jun 2007 06:17:59 +0000 (UTC)
From: George Gensure <werkt0@gmail.com>
Subject: [SDL] error removal patch for SDL_x11dyn.c
I found that calling SDL_GetError when an error hasn't necessarily occurred is
still reporting problems from loadso regarding dynamic functions in X11. I've
added the following to my local copy to avoid revealing the 'many library
lookup' approach adopted by x11dyn.c:
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Wed, 13 Jun 2007 07:54:10 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_ActiveEvent</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="SDL Event Structures." HREF="eventstructures.html"><LINK REL="PREVIOUS" TITLE="SDL_Event" HREF="sdlevent.html"><LINK REL="NEXT" TITLE="SDL_KeyboardEvent" HREF="sdlkeyboardevent.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="sdlevent.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlkeyboardevent.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLACTIVEEVENT" ></A >SDL_ActiveEvent</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN3955" ></A ><H2 >Name</H2 >SDL_ActiveEvent -- Application visibility event structure</DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3958" ></A ><H2 >Structure Definition</H2 ><PRE CLASS="PROGRAMLISTING" >typedef struct{ Uint8 type; Uint8 gain; Uint8 state; } SDL_ActiveEvent;</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3961" ></A ><H2 >Structure Data</H2 ><DIV CLASS="INFORMALTABLE" ><A NAME="AEN3963" ></A ><P ></P ><TABLE BORDER="0" CLASS="CALSTABLE" ><TBODY ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >type</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_ACTIVEEVENT.</TT ></TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >gain</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" >0 if the event is a loss or 1 if it is a gain.</TD ></TR ><TR ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="STRUCTFIELD" ><I >state</I ></TT ></TD ><TD ALIGN="LEFT" VALIGN="TOP" ><TT CLASS="LITERAL" >SDL_APPMOUSEFOCUS</TT > if mouse focus was gained or lost, <TT CLASS="LITERAL" >SDL_APPINPUTFOCUS</TT > if input focus was gained or lost, or <TT CLASS="LITERAL" >SDL_APPACTIVE</TT > if the application was iconified (<TT CLASS="STRUCTFIELD" ><I >gain</I ></TT >=0) or restored(<TT CLASS="STRUCTFIELD" ><I >gain</I ></TT >=1).</TD ></TR ></TBODY ></TABLE ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN3984" ></A ><H2 >Description</H2 ><P ><SPAN CLASS="STRUCTNAME" >SDL_ActiveEvent</SPAN > is a member of the <A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</SPAN ></A > union and is used when an event of type <TT CLASS="LITERAL" >SDL_ACTIVEEVENT</TT > is reported.</P ><P >When the mouse leaves or enters the window area a <TT CLASS="LITERAL" >SDL_APPMOUSEFOCUS</TT > type activation event occurs, if the mouse entered the window then <TT CLASS="STRUCTFIELD" ><I >gain</I ></TT > will be 1, otherwise <TT CLASS="STRUCTFIELD" ><I >gain</I ></TT > will be 0. A <TT CLASS="LITERAL" >SDL_APPINPUTFOCUS</TT > type activation event occurs when the application loses or gains keyboard focus. This usually occurs when another application is made active. Finally, a <TT CLASS="LITERAL" >SDL_APPACTIVE</TT > type event occurs when the application is either minimised/iconified (<TT CLASS="STRUCTFIELD" ><I >gain</I ></TT >=0) or restored.</P ><DIV CLASS="NOTE" ><BLOCKQUOTE CLASS="NOTE" ><P ><B >Note: </B >This event does not occur when an application window is first created.</P ></BLOCKQUOTE ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN4000" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlevent.html" ><SPAN CLASS="STRUCTNAME" >SDL_Event</SPAN ></A >, <A HREF="sdlgetappstate.html" ><TT CLASS="FUNCTION" >SDL_GetAppState</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="sdlevent.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="sdlkeyboardevent.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_Event</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="eventstructures.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_KeyboardEvent</TD ></TR ></TABLE ></DIV ></BODY ></HTML >