Mercurial > sdl-ios-xcode
view docs/html/sdlgetrelativemousestate.html @ 4347:38f22ed3a433 SDL-1.2
Option to fix bug #851
For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 17 Oct 2009 06:55:17 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_GetRelativeMouseState</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="Event Functions." HREF="eventfunctions.html"><LINK REL="PREVIOUS" TITLE="SDL_GetMouseState" HREF="sdlgetmousestate.html"><LINK REL="NEXT" TITLE="SDL_GetAppState" HREF="sdlgetappstate.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="sdlgetmousestate.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlgetappstate.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLGETRELATIVEMOUSESTATE" ></A >SDL_GetRelativeMouseState</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN5902" ></A ><H2 >Name</H2 >SDL_GetRelativeMouseState -- Retrieve the current state of the mouse</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN5905" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN5906" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >Uint8 <B CLASS="FSFUNC" >SDL_GetRelativeMouseState</B ></CODE >(int *x, int *y);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5912" ></A ><H2 >Description</H2 ><P >The current button state is returned as a button bitmask, which can be tested using the <TT CLASS="LITERAL" >SDL_BUTTON(X)</TT > macros, and <TT CLASS="PARAMETER" ><I >x</I ></TT > and <TT CLASS="PARAMETER" ><I >y</I ></TT > are set to the change in the mouse position since the last call to <TT CLASS="FUNCTION" >SDL_GetRelativeMouseState</TT > or since event initialization. You can pass <TT CLASS="LITERAL" >NULL</TT > for either <TT CLASS="PARAMETER" ><I >x</I ></TT > or <TT CLASS="PARAMETER" ><I >y</I ></TT >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN5922" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlgetmousestate.html" ><TT CLASS="FUNCTION" >SDL_GetMouseState</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="sdlgetmousestate.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="sdlgetappstate.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_GetMouseState</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="eventfunctions.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_GetAppState</TD ></TR ></TABLE ></DIV ></BODY ></HTML >