Mercurial > sdl-ios-xcode
annotate docs/html/event.html @ 1207:c9ec00d3e8bc
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Wed, 21 Dec 2005 13:39:39 +0100
Subject: [SDL] Another mouse bug patch for Mac OS X
Oh my, yet another change in the quartz mouse handling code! :)
The attached patch fixes the following bug:
Calling SDL_WarpMouse() while the cursor is invisible and grabbed should
only update SDL's internal mouse location, not try to warp the system
cursor (which is not at that location, but fixed in the middle of the
window). Otherwise, the next mouse motion event is wrong.
Please apply.
Thanks
Christian
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 21 Dec 2005 18:02:36 +0000 |
| parents | 355632dca928 |
| children |
| 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 1.76b+ |
| 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 | |
|
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35 SUMMARY="Header navigation table" |
| 0 | 36 WIDTH="100%" |
| 37 BORDER="0" | |
| 38 CELLPADDING="0" | |
| 39 CELLSPACING="0" | |
| 40 ><TR | |
| 41 ><TH | |
| 42 COLSPAN="3" | |
| 43 ALIGN="center" | |
| 44 >SDL Library Documentation</TH | |
| 45 ></TR | |
| 46 ><TR | |
| 47 ><TD | |
| 48 WIDTH="10%" | |
| 49 ALIGN="left" | |
| 50 VALIGN="bottom" | |
| 51 ><A | |
| 52 HREF="sdlwmgrabinput.html" | |
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53 ACCESSKEY="P" |
| 0 | 54 >Prev</A |
| 55 ></TD | |
| 56 ><TD | |
| 57 WIDTH="80%" | |
| 58 ALIGN="center" | |
| 59 VALIGN="bottom" | |
| 60 ></TD | |
| 61 ><TD | |
| 62 WIDTH="10%" | |
| 63 ALIGN="right" | |
| 64 VALIGN="bottom" | |
| 65 ><A | |
| 66 HREF="eventstructures.html" | |
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67 ACCESSKEY="N" |
| 0 | 68 >Next</A |
| 69 ></TD | |
| 70 ></TR | |
| 71 ></TABLE | |
| 72 ><HR | |
| 73 ALIGN="LEFT" | |
| 74 WIDTH="100%"></DIV | |
| 75 ><DIV | |
| 76 CLASS="CHAPTER" | |
| 77 ><H1 | |
| 78 ><A | |
| 79 NAME="EVENT" | |
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80 ></A |
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81 >Chapter 8. Events</H1 |
| 0 | 82 ><DIV |
| 83 CLASS="TOC" | |
| 84 ><DL | |
| 85 ><DT | |
| 86 ><B | |
| 87 >Table of Contents</B | |
| 88 ></DT | |
| 89 ><DT | |
| 90 ><A | |
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91 HREF="event.html#AEN3691" |
| 0 | 92 >Introduction</A |
| 93 ></DT | |
| 94 ><DT | |
| 95 ><A | |
| 96 HREF="eventstructures.html" | |
| 97 >SDL Event Structures.</A | |
| 98 ></DT | |
| 99 ><DT | |
| 100 ><A | |
| 101 HREF="eventfunctions.html" | |
| 102 >Event Functions.</A | |
| 103 ></DT | |
| 104 ></DL | |
| 105 ></DIV | |
| 106 ><DIV | |
| 107 CLASS="SECT1" | |
| 108 ><H1 | |
| 109 CLASS="SECT1" | |
| 110 ><A | |
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111 NAME="AEN3691" |
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112 ></A |
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113 >Introduction</H1 |
| 0 | 114 ><P |
| 115 >Event handling allows your application to receive input from the user. Event handling is initalised (along with video) with a call to: | |
| 116 <PRE | |
| 117 CLASS="PROGRAMLISTING" | |
| 118 >SDL_Init(SDL_INIT_VIDEO);</PRE | |
| 119 > | |
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181
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120 Internally, SDL stores all the events waiting to be handled in an event queue. Using functions like <A |
| 0 | 121 HREF="sdlpollevent.html" |
| 122 ><TT | |
| 123 CLASS="FUNCTION" | |
| 124 >SDL_PollEvent</TT | |
| 125 ></A | |
| 126 > and <A | |
| 127 HREF="sdlpeepevents.html" | |
| 128 ><TT | |
| 129 CLASS="FUNCTION" | |
| 130 >SDL_PeepEvents</TT | |
| 131 ></A | |
| 132 > you can observe and handle waiting input events.</P | |
| 133 ><P | |
| 134 >The key to event handling in SDL is the <A | |
| 135 HREF="sdlevent.html" | |
| 136 ><SPAN | |
| 137 CLASS="STRUCTNAME" | |
| 138 >SDL_Event</SPAN | |
| 139 ></A | |
| 140 > union. The event queue itself is composed of a series of <SPAN | |
| 141 CLASS="STRUCTNAME" | |
| 142 >SDL_Event</SPAN | |
| 143 > unions, one for each waiting event. <SPAN | |
| 144 CLASS="STRUCTNAME" | |
| 145 >SDL_Event</SPAN | |
| 146 > unions are read from the queue with the <TT | |
| 147 CLASS="FUNCTION" | |
| 148 >SDL_PollEvent</TT | |
| 149 > function and it is then up to the application to process the information stored with them.</P | |
| 150 ></DIV | |
| 151 ></DIV | |
| 152 ><DIV | |
| 153 CLASS="NAVFOOTER" | |
| 154 ><HR | |
| 155 ALIGN="LEFT" | |
| 156 WIDTH="100%"><TABLE | |
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157 SUMMARY="Footer navigation table" |
| 0 | 158 WIDTH="100%" |
| 159 BORDER="0" | |
| 160 CELLPADDING="0" | |
| 161 CELLSPACING="0" | |
| 162 ><TR | |
| 163 ><TD | |
| 164 WIDTH="33%" | |
| 165 ALIGN="left" | |
| 166 VALIGN="top" | |
| 167 ><A | |
| 168 HREF="sdlwmgrabinput.html" | |
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parents:
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169 ACCESSKEY="P" |
| 0 | 170 >Prev</A |
| 171 ></TD | |
| 172 ><TD | |
| 173 WIDTH="34%" | |
| 174 ALIGN="center" | |
| 175 VALIGN="top" | |
| 176 ><A | |
| 177 HREF="index.html" | |
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parents:
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178 ACCESSKEY="H" |
| 0 | 179 >Home</A |
| 180 ></TD | |
| 181 ><TD | |
| 182 WIDTH="33%" | |
| 183 ALIGN="right" | |
| 184 VALIGN="top" | |
| 185 ><A | |
| 186 HREF="eventstructures.html" | |
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355632dca928
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Sam Lantinga <slouken@libsdl.org>
parents:
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187 ACCESSKEY="N" |
| 0 | 188 >Next</A |
| 189 ></TD | |
| 190 ></TR | |
| 191 ><TR | |
| 192 ><TD | |
| 193 WIDTH="33%" | |
| 194 ALIGN="left" | |
| 195 VALIGN="top" | |
| 196 >SDL_WM_GrabInput</TD | |
| 197 ><TD | |
| 198 WIDTH="34%" | |
| 199 ALIGN="center" | |
| 200 VALIGN="top" | |
| 201 ><A | |
| 202 HREF="reference.html" | |
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parents:
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203 ACCESSKEY="U" |
| 0 | 204 >Up</A |
| 205 ></TD | |
| 206 ><TD | |
| 207 WIDTH="33%" | |
| 208 ALIGN="right" | |
| 209 VALIGN="top" | |
| 210 >SDL Event Structures.</TD | |
| 211 ></TR | |
| 212 ></TABLE | |
| 213 ></DIV | |
| 214 ></BODY | |
| 215 ></HTML | |
| 216 > |