Mercurial > sdl-ios-xcode
annotate docs/html/sdlgeteventfilter.html @ 548:6cd49f896c5a
Open ALSA devices in non-blocking mode (thanks Aleksey!)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 17 Nov 2002 20:02:26 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
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| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_GetEventFilter</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
| 0 | 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_SetEventFilter" | |
| 17 HREF="sdlseteventfilter.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_EventState" | |
| 20 HREF="sdleventstate.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 WIDTH="100%" | |
| 32 BORDER="0" | |
| 33 CELLPADDING="0" | |
| 34 CELLSPACING="0" | |
| 35 ><TR | |
| 36 ><TH | |
| 37 COLSPAN="3" | |
| 38 ALIGN="center" | |
| 39 >SDL Library Documentation</TH | |
| 40 ></TR | |
| 41 ><TR | |
| 42 ><TD | |
| 43 WIDTH="10%" | |
| 44 ALIGN="left" | |
| 45 VALIGN="bottom" | |
| 46 ><A | |
| 47 HREF="sdlseteventfilter.html" | |
| 48 >Prev</A | |
| 49 ></TD | |
| 50 ><TD | |
| 51 WIDTH="80%" | |
| 52 ALIGN="center" | |
| 53 VALIGN="bottom" | |
| 54 ></TD | |
| 55 ><TD | |
| 56 WIDTH="10%" | |
| 57 ALIGN="right" | |
| 58 VALIGN="bottom" | |
| 59 ><A | |
| 60 HREF="sdleventstate.html" | |
| 61 >Next</A | |
| 62 ></TD | |
| 63 ></TR | |
| 64 ></TABLE | |
| 65 ><HR | |
| 66 ALIGN="LEFT" | |
| 67 WIDTH="100%"></DIV | |
| 68 ><H1 | |
| 69 ><A | |
| 70 NAME="SDLGETEVENTFILTER" | |
| 71 >SDL_GetEventFilter</A | |
| 72 ></H1 | |
| 73 ><DIV | |
| 74 CLASS="REFNAMEDIV" | |
| 75 ><A | |
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76 NAME="AEN5227" |
| 0 | 77 ></A |
| 78 ><H2 | |
| 79 >Name</H2 | |
| 80 >SDL_GetEventFilter -- Retrieves a pointer to he event filter</DIV | |
| 81 ><DIV | |
| 82 CLASS="REFSYNOPSISDIV" | |
| 83 ><A | |
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84 NAME="AEN5230" |
| 0 | 85 ></A |
| 86 ><H2 | |
| 87 >Synopsis</H2 | |
| 88 ><DIV | |
| 89 CLASS="FUNCSYNOPSIS" | |
| 90 ><A | |
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91 NAME="AEN5231" |
| 0 | 92 ></A |
| 93 ><P | |
| 94 ></P | |
| 95 ><PRE | |
| 96 CLASS="FUNCSYNOPSISINFO" | |
| 97 >#include "SDL.h"</PRE | |
| 98 ><P | |
| 99 ><CODE | |
| 100 ><CODE | |
| 101 CLASS="FUNCDEF" | |
| 102 >SDL_EventFilter <B | |
| 103 CLASS="FSFUNC" | |
| 104 >SDL_GetEventFilter</B | |
| 105 ></CODE | |
| 106 >(void);</CODE | |
| 107 ></P | |
| 108 ><P | |
| 109 ></P | |
| 110 ></DIV | |
| 111 ></DIV | |
| 112 ><DIV | |
| 113 CLASS="REFSECT1" | |
| 114 ><A | |
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115 NAME="AEN5237" |
| 0 | 116 ></A |
| 117 ><H2 | |
| 118 >Description</H2 | |
| 119 ><P | |
| 120 >This function retrieces a pointer to the event filter that was previously set using <A | |
| 121 HREF="sdlseteventfilter.html" | |
| 122 ><TT | |
| 123 CLASS="FUNCTION" | |
| 124 >SDL_SetEventFilter</TT | |
| 125 ></A | |
| 126 >. An SDL_EventFilter function is defined as: | |
| 127 <PRE | |
| 128 CLASS="PROGRAMLISTING" | |
| 129 >typedef int (*SDL_EventFilter)(const SDL_Event *event);</PRE | |
| 130 ></P | |
| 131 ></DIV | |
| 132 ><DIV | |
| 133 CLASS="REFSECT1" | |
| 134 ><A | |
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135 NAME="AEN5243" |
| 0 | 136 ></A |
| 137 ><H2 | |
| 138 >Return Value</H2 | |
| 139 ><P | |
| 140 >Returns a pointer to the event filter or <TT | |
| 141 CLASS="LITERAL" | |
| 142 >NULL</TT | |
| 143 > if no filter has been set.</P | |
| 144 ></DIV | |
| 145 ><DIV | |
| 146 CLASS="REFSECT1" | |
| 147 ><A | |
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148 NAME="AEN5247" |
| 0 | 149 ></A |
| 150 ><H2 | |
| 151 >See Also</H2 | |
| 152 ><P | |
| 153 ><A | |
| 154 HREF="sdlevent.html" | |
| 155 ><SPAN | |
| 156 CLASS="STRUCTNAME" | |
| 157 >SDL_Event</SPAN | |
| 158 ></A | |
| 159 >, | |
| 160 <A | |
| 161 HREF="sdlseteventfilter.html" | |
| 162 ><TT | |
| 163 CLASS="FUNCTION" | |
| 164 >SDL_SetEventFilter</TT | |
| 165 ></A | |
| 166 ></P | |
| 167 ></DIV | |
| 168 ><DIV | |
| 169 CLASS="NAVFOOTER" | |
| 170 ><HR | |
| 171 ALIGN="LEFT" | |
| 172 WIDTH="100%"><TABLE | |
| 173 WIDTH="100%" | |
| 174 BORDER="0" | |
| 175 CELLPADDING="0" | |
| 176 CELLSPACING="0" | |
| 177 ><TR | |
| 178 ><TD | |
| 179 WIDTH="33%" | |
| 180 ALIGN="left" | |
| 181 VALIGN="top" | |
| 182 ><A | |
| 183 HREF="sdlseteventfilter.html" | |
| 184 >Prev</A | |
| 185 ></TD | |
| 186 ><TD | |
| 187 WIDTH="34%" | |
| 188 ALIGN="center" | |
| 189 VALIGN="top" | |
| 190 ><A | |
| 191 HREF="index.html" | |
| 192 >Home</A | |
| 193 ></TD | |
| 194 ><TD | |
| 195 WIDTH="33%" | |
| 196 ALIGN="right" | |
| 197 VALIGN="top" | |
| 198 ><A | |
| 199 HREF="sdleventstate.html" | |
| 200 >Next</A | |
| 201 ></TD | |
| 202 ></TR | |
| 203 ><TR | |
| 204 ><TD | |
| 205 WIDTH="33%" | |
| 206 ALIGN="left" | |
| 207 VALIGN="top" | |
| 208 >SDL_SetEventFilter</TD | |
| 209 ><TD | |
| 210 WIDTH="34%" | |
| 211 ALIGN="center" | |
| 212 VALIGN="top" | |
| 213 ><A | |
| 214 HREF="eventfunctions.html" | |
| 215 >Up</A | |
| 216 ></TD | |
| 217 ><TD | |
| 218 WIDTH="33%" | |
| 219 ALIGN="right" | |
| 220 VALIGN="top" | |
| 221 >SDL_EventState</TD | |
| 222 ></TR | |
| 223 ></TABLE | |
| 224 ></DIV | |
| 225 ></BODY | |
| 226 ></HTML | |
| 227 > |