Mercurial > sdl-ios-xcode
annotate docs/html/event.html @ 693:6c119628180d
Date: Sat, 16 Aug 2003 16:22:56 +0300
From: "Mike Gorchak"
Subject: Package building for QNX6
I'm just completed the package description file for QNX6 - qpg, it is like a\
.spec files for Linux. Please place SDL.qpg.in file in the root of the proj\
ect, where .spec file is placed. And sdl12qpg.diff - just adding the SDL.qpg\
.in. The same for the SDL_image. I'm planning to add .qpg files creation for\
all SDL* projects.
As for shared library building for QNX6. It is very hard to improve the exis\
ting libtool code to support QNX shared libraries. Much easyiest is to remov\
e libtool.m4 code from the acinclude.m4 for those persons, who building shar\
ed libraries for QNX6. I'm described all what they need to do with .so under\
QNX6 in the README.QNX file. And 90% of people used the precompiled librari\
es, so I think it is not big problem :)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 23 Aug 2003 23:25:46 +0000 |
| parents | e5bc29de3f0a |
| children | 355632dca928 |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >Events</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="SDL Reference" | |
| 14 HREF="reference.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_WM_GrabInput" | |
| 17 HREF="sdlwmgrabinput.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL Event Structures." | |
| 20 HREF="eventstructures.html"><META | |
| 21 NAME="KEYWORD" | |
| 22 CONTENT="events"><META | |
| 23 NAME="KEYWORD" | |
| 24 CONTENT="function"></HEAD | |
| 25 ><BODY | |
| 26 CLASS="CHAPTER" | |
| 27 BGCOLOR="#FFF8DC" | |
| 28 TEXT="#000000" | |
| 29 LINK="#0000ee" | |
| 30 VLINK="#551a8b" | |
| 31 ALINK="#ff0000" | |
| 32 ><DIV | |
| 33 CLASS="NAVHEADER" | |
| 34 ><TABLE | |
| 35 WIDTH="100%" | |
| 36 BORDER="0" | |
| 37 CELLPADDING="0" | |
| 38 CELLSPACING="0" | |
| 39 ><TR | |
| 40 ><TH | |
| 41 COLSPAN="3" | |
| 42 ALIGN="center" | |
| 43 >SDL Library Documentation</TH | |
| 44 ></TR | |
| 45 ><TR | |
| 46 ><TD | |
| 47 WIDTH="10%" | |
| 48 ALIGN="left" | |
| 49 VALIGN="bottom" | |
| 50 ><A | |
| 51 HREF="sdlwmgrabinput.html" | |
| 52 >Prev</A | |
| 53 ></TD | |
| 54 ><TD | |
| 55 WIDTH="80%" | |
| 56 ALIGN="center" | |
| 57 VALIGN="bottom" | |
| 58 ></TD | |
| 59 ><TD | |
| 60 WIDTH="10%" | |
| 61 ALIGN="right" | |
| 62 VALIGN="bottom" | |
| 63 ><A | |
| 64 HREF="eventstructures.html" | |
| 65 >Next</A | |
| 66 ></TD | |
| 67 ></TR | |
| 68 ></TABLE | |
| 69 ><HR | |
| 70 ALIGN="LEFT" | |
| 71 WIDTH="100%"></DIV | |
| 72 ><DIV | |
| 73 CLASS="CHAPTER" | |
| 74 ><H1 | |
| 75 ><A | |
| 76 NAME="EVENT" | |
| 77 >Chapter 8. Events</A | |
| 78 ></H1 | |
| 79 ><DIV | |
| 80 CLASS="TOC" | |
| 81 ><DL | |
| 82 ><DT | |
| 83 ><B | |
| 84 >Table of Contents</B | |
| 85 ></DT | |
| 86 ><DT | |
| 87 ><A | |
|
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88 HREF="event.html#AEN3307" |
| 0 | 89 >Introduction</A |
| 90 ></DT | |
| 91 ><DT | |
| 92 ><A | |
| 93 HREF="eventstructures.html" | |
| 94 >SDL Event Structures.</A | |
| 95 ></DT | |
| 96 ><DT | |
| 97 ><A | |
| 98 HREF="eventfunctions.html" | |
| 99 >Event Functions.</A | |
| 100 ></DT | |
| 101 ></DL | |
| 102 ></DIV | |
| 103 ><DIV | |
| 104 CLASS="SECT1" | |
| 105 ><H1 | |
| 106 CLASS="SECT1" | |
| 107 ><A | |
|
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108 NAME="AEN3307" |
| 0 | 109 >Introduction</A |
| 110 ></H1 | |
| 111 ><P | |
| 112 >Event handling allows your application to receive input from the user. Event handling is initalised (along with video) with a call to: | |
| 113 <PRE | |
| 114 CLASS="PROGRAMLISTING" | |
| 115 >SDL_Init(SDL_INIT_VIDEO);</PRE | |
| 116 > | |
|
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117 Internally, SDL stores all the events waiting to be handled in an event queue. Using functions like <A |
| 0 | 118 HREF="sdlpollevent.html" |
| 119 ><TT | |
| 120 CLASS="FUNCTION" | |
| 121 >SDL_PollEvent</TT | |
| 122 ></A | |
| 123 > and <A | |
| 124 HREF="sdlpeepevents.html" | |
| 125 ><TT | |
| 126 CLASS="FUNCTION" | |
| 127 >SDL_PeepEvents</TT | |
| 128 ></A | |
| 129 > you can observe and handle waiting input events.</P | |
| 130 ><P | |
| 131 >The key to event handling in SDL is the <A | |
| 132 HREF="sdlevent.html" | |
| 133 ><SPAN | |
| 134 CLASS="STRUCTNAME" | |
| 135 >SDL_Event</SPAN | |
| 136 ></A | |
| 137 > union. The event queue itself is composed of a series of <SPAN | |
| 138 CLASS="STRUCTNAME" | |
| 139 >SDL_Event</SPAN | |
| 140 > unions, one for each waiting event. <SPAN | |
| 141 CLASS="STRUCTNAME" | |
| 142 >SDL_Event</SPAN | |
| 143 > unions are read from the queue with the <TT | |
| 144 CLASS="FUNCTION" | |
| 145 >SDL_PollEvent</TT | |
| 146 > function and it is then up to the application to process the information stored with them.</P | |
| 147 ></DIV | |
| 148 ></DIV | |
| 149 ><DIV | |
| 150 CLASS="NAVFOOTER" | |
| 151 ><HR | |
| 152 ALIGN="LEFT" | |
| 153 WIDTH="100%"><TABLE | |
| 154 WIDTH="100%" | |
| 155 BORDER="0" | |
| 156 CELLPADDING="0" | |
| 157 CELLSPACING="0" | |
| 158 ><TR | |
| 159 ><TD | |
| 160 WIDTH="33%" | |
| 161 ALIGN="left" | |
| 162 VALIGN="top" | |
| 163 ><A | |
| 164 HREF="sdlwmgrabinput.html" | |
| 165 >Prev</A | |
| 166 ></TD | |
| 167 ><TD | |
| 168 WIDTH="34%" | |
| 169 ALIGN="center" | |
| 170 VALIGN="top" | |
| 171 ><A | |
| 172 HREF="index.html" | |
| 173 >Home</A | |
| 174 ></TD | |
| 175 ><TD | |
| 176 WIDTH="33%" | |
| 177 ALIGN="right" | |
| 178 VALIGN="top" | |
| 179 ><A | |
| 180 HREF="eventstructures.html" | |
| 181 >Next</A | |
| 182 ></TD | |
| 183 ></TR | |
| 184 ><TR | |
| 185 ><TD | |
| 186 WIDTH="33%" | |
| 187 ALIGN="left" | |
| 188 VALIGN="top" | |
| 189 >SDL_WM_GrabInput</TD | |
| 190 ><TD | |
| 191 WIDTH="34%" | |
| 192 ALIGN="center" | |
| 193 VALIGN="top" | |
| 194 ><A | |
| 195 HREF="reference.html" | |
| 196 >Up</A | |
| 197 ></TD | |
| 198 ><TD | |
| 199 WIDTH="33%" | |
| 200 ALIGN="right" | |
| 201 VALIGN="top" | |
| 202 >SDL Event Structures.</TD | |
| 203 ></TR | |
| 204 ></TABLE | |
| 205 ></DIV | |
| 206 ></BODY | |
| 207 ></HTML | |
| 208 > |