Mercurial > sdl-ios-xcode
view docs/html/time.html @ 1119:430d8d701f69
SDL_GetAppState() correction when toggling fullscreen on OSX.
Patch by me to address this comment on the SDL mailing list:
"There appears to be a serious bug with SDL_GetAppState on OS X (10.3.9). When
first running in windowed mode and then switching to full screen mode by
calling SDL_SetVideoMode, SDL_GetAppState returns 4 (SDL_APPACTIVE) instead of
7 (SDL_APPMOUSEFOCUS | SDL_APPINPUTFOCUS | SDL_APPACTIVE). However, the SDL
application clearly does have the keyboard focus, since it is able to receive
keyboard events."
--ryan.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Thu, 18 Aug 2005 06:18:30 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >Time</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 Reference" HREF="reference.html"><LINK REL="PREVIOUS" TITLE="SDL_CondWaitTimeout" HREF="sdlcondwaittimeout.html"><LINK REL="NEXT" TITLE="SDL_GetTicks" HREF="sdlgetticks.html"><META NAME="KEYWORD" CONTENT="time"><META NAME="KEYWORD" CONTENT="function"></HEAD ><BODY CLASS="CHAPTER" 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="sdlcondwaittimeout.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlgetticks.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="TIME" ></A >Chapter 13. Time</H1 ><DIV CLASS="TOC" ><DL ><DT ><B >Table of Contents</B ></DT ><DT ><A HREF="sdlgetticks.html" >SDL_GetTicks</A > -- Get the number of milliseconds since the SDL library initialization.</DT ><DT ><A HREF="sdldelay.html" >SDL_Delay</A > -- Wait a specified number of milliseconds before returning.</DT ><DT ><A HREF="sdladdtimer.html" >SDL_AddTimer</A > -- Add a timer which will call a callback after the specified number of milliseconds has elapsed.</DT ><DT ><A HREF="sdlremovetimer.html" >SDL_RemoveTimer</A > -- Remove a timer which was added with <A HREF="sdladdtimer.html" >SDL_AddTimer</A >.</DT ><DT ><A HREF="sdlsettimer.html" >SDL_SetTimer</A > -- Set a callback to run after the specified number of milliseconds has elapsed.</DT ></DL ></DIV ><P >SDL provides several cross-platform functions for dealing with time. It provides a way to get the current time, a way to wait a little while, and a simple timer mechanism. These functions give you two ways of moving an object every x milliseconds: <P ></P ><UL ><LI ><P >Use a timer callback function. This may have the bad effect that it runs in a seperate thread or uses alarm signals, but it's easier to implement.</P ></LI ><LI ><P >Or you can get the number of milliseconds passed, and move the object if, for example, 30 ms passed.</P ></LI ></UL > </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="sdlcondwaittimeout.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="sdlgetticks.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_CondWaitTimeout</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="reference.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_GetTicks</TD ></TR ></TABLE ></DIV ></BODY ></HTML >