forked from KolibriOS/kolibrios
198 lines
3.0 KiB
HTML
198 lines
3.0 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Time</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.64
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"><LINK
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REL="HOME"
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TITLE="SDL Library Documentation"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="SDL Reference"
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HREF="reference.html"><LINK
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REL="PREVIOUS"
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TITLE="SDL_CondWaitTimeout"
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HREF="sdlcondwaittimeout.html"><LINK
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REL="NEXT"
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TITLE="SDL_GetTicks"
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HREF="sdlgetticks.html"><META
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NAME="KEYWORD"
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CONTENT="time"><META
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NAME="KEYWORD"
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CONTENT="function"></HEAD
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><BODY
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CLASS="CHAPTER"
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BGCOLOR="#FFF8DC"
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TEXT="#000000"
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VLINK="#551a8b"
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ALINK="#ff0000"
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><DIV
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><TABLE
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CELLSPACING="0"
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><TR
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><TH
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COLSPAN="3"
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>SDL Library Documentation</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="sdlcondwaittimeout.html"
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>Prev</A
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></TD
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WIDTH="80%"
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><TD
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WIDTH="10%"
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VALIGN="bottom"
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>Next</A
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></TD
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></TABLE
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><DIV
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CLASS="CHAPTER"
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><H1
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><A
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NAME="TIME"
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>Chapter 13. Time</A
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></H1
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><DIV
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CLASS="TOC"
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><DL
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><DT
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><B
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>Table of Contents</B
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></DT
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><DT
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><A
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HREF="sdlgetticks.html"
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>SDL_GetTicks</A
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> — Get the number of milliseconds since the SDL library initialization.</DT
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><DT
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><A
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HREF="sdldelay.html"
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>SDL_Delay</A
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> — Wait a specified number of milliseconds before returning.</DT
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><DT
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><A
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HREF="sdladdtimer.html"
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>SDL_AddTimer</A
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> — Add a timer which will call a callback after the specified number of milliseconds has
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elapsed.</DT
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><DT
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><A
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HREF="sdlremovetimer.html"
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>SDL_RemoveTimer</A
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> — Remove a timer which was added with
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<A
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HREF="sdladdtimer.html"
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>SDL_AddTimer</A
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>.</DT
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><DT
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><A
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HREF="sdlsettimer.html"
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>SDL_SetTimer</A
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> — Set a callback to run after the specified number of milliseconds has
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elapsed.</DT
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></DL
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></DIV
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><P
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>SDL provides several cross-platform functions for dealing with time.
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It provides a way to get the current time, a way to wait a little while,
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and a simple timer mechanism. These functions give you two ways of moving an
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object every x milliseconds:
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<P
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></P
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><UL
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><LI
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><P
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>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
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></LI
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><LI
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><P
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>Or you can get the number of milliseconds passed, and move the object if, for example, 30 ms passed.</P
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></LI
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></UL
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> </P
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></DIV
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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><A
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HREF="sdlcondwaittimeout.html"
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>Prev</A
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></TD
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>Home</A
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HREF="sdlgetticks.html"
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>Next</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>SDL_CondWaitTimeout</TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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><A
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HREF="reference.html"
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>Up</A
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></TD
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><TD
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>SDL_GetTicks</TD
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></TR
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></TABLE
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></DIV
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></BODY
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></HTML
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> |