1 <HTML 2 ><HEAD 3 ><TITLE 4 >SDL_PushEvent</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_WaitEvent" 17 HREF="sdlwaitevent.html"><LINK 18 REL="NEXT" 19 TITLE="SDL_SetEventFilter" 20 HREF="sdlseteventfilter.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="sdlwaitevent.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="sdlseteventfilter.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="SDLPUSHEVENT" 74 ></A 75 >SDL_PushEvent</H1 76 ><DIV 77 CLASS="REFNAMEDIV" 78 ><A 79 NAME="AEN5536" 80 ></A 81 ><H2 82 >Name</H2 83 >SDL_PushEvent -- Pushes an event onto the event queue</DIV 84 ><DIV 85 CLASS="REFSYNOPSISDIV" 86 ><A 87 NAME="AEN5539" 88 ></A 89 ><H2 90 >Synopsis</H2 91 ><DIV 92 CLASS="FUNCSYNOPSIS" 93 ><A 94 NAME="AEN5540" 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 >int <B 106 CLASS="FSFUNC" 107 >SDL_PushEvent</B 108 ></CODE 109 >(SDL_Event *event);</CODE 110 ></P 111 ><P 112 ></P 113 ></DIV 114 ></DIV 115 ><DIV 116 CLASS="REFSECT1" 117 ><A 118 NAME="AEN5546" 119 ></A 120 ><H2 121 >Description</H2 122 ><P 123 >The event queue can actually be used as a two way communication channel. Not only can events be read from the queue, but the user can also push their own events onto it. <TT 124 CLASS="PARAMETER" 125 ><I 126 >event</I 127 ></TT 128 > is a pointer to the event structure you wish to push onto the queue.</P 129 ><DIV 130 CLASS="NOTE" 131 ><BLOCKQUOTE 132 CLASS="NOTE" 133 ><P 134 ><B 135 >Note: </B 136 >Pushing device input events onto the queue doesn't modify the state of the device within SDL.</P 137 ></BLOCKQUOTE 138 ></DIV 139 ></DIV 140 ><DIV 141 CLASS="REFSECT1" 142 ><A 143 NAME="AEN5552" 144 ></A 145 ><H2 146 >Return Value</H2 147 ><P 148 >Returns <SPAN 149 CLASS="RETURNVALUE" 150 >0</SPAN 151 > on success or <SPAN 152 CLASS="RETURNVALUE" 153 >-1</SPAN 154 > if the event couldn't be pushed.</P 155 ></DIV 156 ><DIV 157 CLASS="REFSECT1" 158 ><A 159 NAME="AEN5557" 160 ></A 161 ><H2 162 >Examples</H2 163 ><P 164 >See <A 165 HREF="sdlevent.html" 166 ><SPAN 167 CLASS="STRUCTNAME" 168 >SDL_Event</SPAN 169 ></A 170 >.</P 171 ></DIV 172 ><DIV 173 CLASS="REFSECT1" 174 ><A 175 NAME="AEN5562" 176 ></A 177 ><H2 178 >See Also</H2 179 ><P 180 ><A 181 HREF="sdlpollevent.html" 182 ><TT 183 CLASS="FUNCTION" 184 >SDL_PollEvent</TT 185 ></A 186 >, 187 <A 188 HREF="sdlpeepevents.html" 189 ><TT 190 CLASS="FUNCTION" 191 >SDL_PeepEvents</TT 192 ></A 193 >, 194 <A 195 HREF="sdlevent.html" 196 ><SPAN 197 CLASS="STRUCTNAME" 198 >SDL_Event</SPAN 199 ></A 200 ></P 201 ></DIV 202 ><DIV 203 CLASS="NAVFOOTER" 204 ><HR 205 ALIGN="LEFT" 206 WIDTH="100%"><TABLE 207 SUMMARY="Footer navigation table" 208 WIDTH="100%" 209 BORDER="0" 210 CELLPADDING="0" 211 CELLSPACING="0" 212 ><TR 213 ><TD 214 WIDTH="33%" 215 ALIGN="left" 216 VALIGN="top" 217 ><A 218 HREF="sdlwaitevent.html" 219 ACCESSKEY="P" 220 >Prev</A 221 ></TD 222 ><TD 223 WIDTH="34%" 224 ALIGN="center" 225 VALIGN="top" 226 ><A 227 HREF="index.html" 228 ACCESSKEY="H" 229 >Home</A 230 ></TD 231 ><TD 232 WIDTH="33%" 233 ALIGN="right" 234 VALIGN="top" 235 ><A 236 HREF="sdlseteventfilter.html" 237 ACCESSKEY="N" 238 >Next</A 239 ></TD 240 ></TR 241 ><TR 242 ><TD 243 WIDTH="33%" 244 ALIGN="left" 245 VALIGN="top" 246 >SDL_WaitEvent</TD 247 ><TD 248 WIDTH="34%" 249 ALIGN="center" 250 VALIGN="top" 251 ><A 252 HREF="eventfunctions.html" 253 ACCESSKEY="U" 254 >Up</A 255 ></TD 256 ><TD 257 WIDTH="33%" 258 ALIGN="right" 259 VALIGN="top" 260 >SDL_SetEventFilter</TD 261 ></TR 262 ></TABLE 263 ></DIV 264 ></BODY 265 ></HTML 266 >