1 <HTML 2 ><HEAD 3 ><TITLE 4 >SDL_GetRelativeMouseState</TITLE 5 ><META 6 NAME="GENERATOR" 7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ 8 "><LINK 9 REL="HOME" 10 TITLE="SDL Library Documentation" 11 HREF="index.html"><LINK 12 REL="UP" 13 TITLE="Event Functions." 14 HREF="eventfunctions.html"><LINK 15 REL="PREVIOUS" 16 TITLE="SDL_GetMouseState" 17 HREF="sdlgetmousestate.html"><LINK 18 REL="NEXT" 19 TITLE="SDL_GetAppState" 20 HREF="sdlgetappstate.html"></HEAD 21 ><BODY 22 CLASS="REFENTRY" 23 BGCOLOR="#FFF8DC" 24 TEXT="#000000" 25 LINK="#0000ee" 26 VLINK="#551a8b" 27 ALINK="#ff0000" 28 ><DIV 29 CLASS="NAVHEADER" 30 ><TABLE 31 SUMMARY="Header navigation table" 32 WIDTH="100%" 33 BORDER="0" 34 CELLPADDING="0" 35 CELLSPACING="0" 36 ><TR 37 ><TH 38 COLSPAN="3" 39 ALIGN="center" 40 >SDL Library Documentation</TH 41 ></TR 42 ><TR 43 ><TD 44 WIDTH="10%" 45 ALIGN="left" 46 VALIGN="bottom" 47 ><A 48 HREF="sdlgetmousestate.html" 49 ACCESSKEY="P" 50 >Prev</A 51 ></TD 52 ><TD 53 WIDTH="80%" 54 ALIGN="center" 55 VALIGN="bottom" 56 ></TD 57 ><TD 58 WIDTH="10%" 59 ALIGN="right" 60 VALIGN="bottom" 61 ><A 62 HREF="sdlgetappstate.html" 63 ACCESSKEY="N" 64 >Next</A 65 ></TD 66 ></TR 67 ></TABLE 68 ><HR 69 ALIGN="LEFT" 70 WIDTH="100%"></DIV 71 ><H1 72 ><A 73 NAME="SDLGETRELATIVEMOUSESTATE" 74 ></A 75 >SDL_GetRelativeMouseState</H1 76 ><DIV 77 CLASS="REFNAMEDIV" 78 ><A 79 NAME="AEN5902" 80 ></A 81 ><H2 82 >Name</H2 83 >SDL_GetRelativeMouseState -- Retrieve the current state of the mouse</DIV 84 ><DIV 85 CLASS="REFSYNOPSISDIV" 86 ><A 87 NAME="AEN5905" 88 ></A 89 ><H2 90 >Synopsis</H2 91 ><DIV 92 CLASS="FUNCSYNOPSIS" 93 ><A 94 NAME="AEN5906" 95 ></A 96 ><P 97 ></P 98 ><PRE 99 CLASS="FUNCSYNOPSISINFO" 100 >#include "SDL.h"</PRE 101 ><P 102 ><CODE 103 ><CODE 104 CLASS="FUNCDEF" 105 >Uint8 <B 106 CLASS="FSFUNC" 107 >SDL_GetRelativeMouseState</B 108 ></CODE 109 >(int *x, int *y);</CODE 110 ></P 111 ><P 112 ></P 113 ></DIV 114 ></DIV 115 ><DIV 116 CLASS="REFSECT1" 117 ><A 118 NAME="AEN5912" 119 ></A 120 ><H2 121 >Description</H2 122 ><P 123 >The current button state is returned as a button bitmask, which can 124 be tested using the <TT 125 CLASS="LITERAL" 126 >SDL_BUTTON(X)</TT 127 > macros, and <TT 128 CLASS="PARAMETER" 129 ><I 130 >x</I 131 ></TT 132 > and <TT 133 CLASS="PARAMETER" 134 ><I 135 >y</I 136 ></TT 137 > are set to the change in the mouse position since the last call to <TT 138 CLASS="FUNCTION" 139 >SDL_GetRelativeMouseState</TT 140 > or since event initialization. You can pass <TT 141 CLASS="LITERAL" 142 >NULL</TT 143 > for either <TT 144 CLASS="PARAMETER" 145 ><I 146 >x</I 147 ></TT 148 > or <TT 149 CLASS="PARAMETER" 150 ><I 151 >y</I 152 ></TT 153 >.</P 154 ></DIV 155 ><DIV 156 CLASS="REFSECT1" 157 ><A 158 NAME="AEN5922" 159 ></A 160 ><H2 161 >See Also</H2 162 ><P 163 ><A 164 HREF="sdlgetmousestate.html" 165 ><TT 166 CLASS="FUNCTION" 167 >SDL_GetMouseState</TT 168 ></A 169 ></P 170 ></DIV 171 ><DIV 172 CLASS="NAVFOOTER" 173 ><HR 174 ALIGN="LEFT" 175 WIDTH="100%"><TABLE 176 SUMMARY="Footer navigation table" 177 WIDTH="100%" 178 BORDER="0" 179 CELLPADDING="0" 180 CELLSPACING="0" 181 ><TR 182 ><TD 183 WIDTH="33%" 184 ALIGN="left" 185 VALIGN="top" 186 ><A 187 HREF="sdlgetmousestate.html" 188 ACCESSKEY="P" 189 >Prev</A 190 ></TD 191 ><TD 192 WIDTH="34%" 193 ALIGN="center" 194 VALIGN="top" 195 ><A 196 HREF="index.html" 197 ACCESSKEY="H" 198 >Home</A 199 ></TD 200 ><TD 201 WIDTH="33%" 202 ALIGN="right" 203 VALIGN="top" 204 ><A 205 HREF="sdlgetappstate.html" 206 ACCESSKEY="N" 207 >Next</A 208 ></TD 209 ></TR 210 ><TR 211 ><TD 212 WIDTH="33%" 213 ALIGN="left" 214 VALIGN="top" 215 >SDL_GetMouseState</TD 216 ><TD 217 WIDTH="34%" 218 ALIGN="center" 219 VALIGN="top" 220 ><A 221 HREF="eventfunctions.html" 222 ACCESSKEY="U" 223 >Up</A 224 ></TD 225 ><TD 226 WIDTH="33%" 227 ALIGN="right" 228 VALIGN="top" 229 >SDL_GetAppState</TD 230 ></TR 231 ></TABLE 232 ></DIV 233 ></BODY 234 ></HTML 235 >
