Mercurial > sdl-ios-xcode
annotate docs/html/sdlquitevent.html @ 821:30168104389f
Date: Sat, 14 Feb 2004 14:52:40 +0200
From: "Mike Gorchak"
Subject: Batch of the QNX6 fixes for the SDL
1. Updated readme.QNX
2. Fixed crashes during intensive window updating under fast machines (got over 200 rectangles for update).
3. Fixed double-buffered fullscreen modes, now it works as needed.
4. Fixed Photon detection algorithm.
5. Fixed HWSURFACE update function.
6. Added SDL_PHOTON_FULLSCREEN_REFRESH environment variable support for control refresh rates under Photon.
7. Added 640x400 fullscreen mode emulation via 640x480 (if videodriver not supports original 640x400 mode of course) shifted by 40 vertical pixels from begin, to center it. It's needed for some old DOS games which ran in doubled 320x200 mode.
8. Added available video ram amount support.
8. Added hardware surface allocation/deallocation support if current videomode and videodriver supports it.
9. Added hardware filling support.
10. Added hardware blits support (simple and colorkeyed).
And I've added to testvidinfo test color-keyed blits benchmark (maybe need to add alpha blits benchmark too ?). Currently Photon not supporting any alpha hardware blittings (all drivers lack of alpha blitting code support, only software alpha blitting exist in photon, which is hundreds times slowest than the SDL's one). So I've not added the alpha support. I suppose new QNX 6.3 will have the hardware alpha support, so when it will be done, I'll add alpha support.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 14 Feb 2004 20:22:21 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_QuitEvent</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 Event Structures." | |
14 HREF="eventstructures.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_UserEvent" | |
17 HREF="sdluserevent.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_keysym" | |
20 HREF="sdlkeysym.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 | |
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31 SUMMARY="Header navigation table" |
0 | 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="sdluserevent.html" | |
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49 ACCESSKEY="P" |
0 | 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="sdlkeysym.html" | |
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63 ACCESSKEY="N" |
0 | 64 >Next</A |
65 ></TD | |
66 ></TR | |
67 ></TABLE | |
68 ><HR | |
69 ALIGN="LEFT" | |
70 WIDTH="100%"></DIV | |
71 ><H1 | |
72 ><A | |
73 NAME="SDLQUITEVENT" | |
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74 ></A |
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75 >SDL_QuitEvent</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN4621" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_QuitEvent -- Quit requested event</DIV | |
84 ><DIV | |
85 CLASS="REFSECT1" | |
86 ><A | |
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87 NAME="AEN4624" |
0 | 88 ></A |
89 ><H2 | |
90 >Structure Definition</H2 | |
91 ><PRE | |
92 CLASS="PROGRAMLISTING" | |
93 >typedef struct{ | |
94 Uint8 type | |
95 } SDL_QuitEvent;</PRE | |
96 ></DIV | |
97 ><DIV | |
98 CLASS="REFSECT1" | |
99 ><A | |
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100 NAME="AEN4627" |
0 | 101 ></A |
102 ><H2 | |
103 >Structure Data</H2 | |
104 ><DIV | |
105 CLASS="INFORMALTABLE" | |
106 ><A | |
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107 NAME="AEN4629" |
0 | 108 ></A |
109 ><P | |
110 ></P | |
111 ><TABLE | |
112 BORDER="0" | |
113 CLASS="CALSTABLE" | |
114 ><TBODY | |
115 ><TR | |
116 ><TD | |
117 ALIGN="LEFT" | |
118 VALIGN="TOP" | |
119 ><TT | |
120 CLASS="STRUCTFIELD" | |
121 ><I | |
122 >type</I | |
123 ></TT | |
124 ></TD | |
125 ><TD | |
126 ALIGN="LEFT" | |
127 VALIGN="TOP" | |
128 ><TT | |
129 CLASS="LITERAL" | |
130 >SDL_QUIT</TT | |
131 ></TD | |
132 ></TR | |
133 ></TBODY | |
134 ></TABLE | |
135 ><P | |
136 ></P | |
137 ></DIV | |
138 ></DIV | |
139 ><DIV | |
140 CLASS="REFSECT1" | |
141 ><A | |
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142 NAME="AEN4637" |
0 | 143 ></A |
144 ><H2 | |
145 >Description</H2 | |
146 ><P | |
147 ><SPAN | |
148 CLASS="STRUCTNAME" | |
149 >SDL_QuitEvent</SPAN | |
150 > is a member of the <A | |
151 HREF="sdlevent.html" | |
152 ><SPAN | |
153 CLASS="STRUCTNAME" | |
154 >SDL_Event</SPAN | |
155 ></A | |
156 > union and is used whan an event of type <TT | |
157 CLASS="LITERAL" | |
158 >SDL_QUIT</TT | |
159 > is reported.</P | |
160 ><P | |
161 >As can be seen, the SDL_QuitEvent structure serves no useful purpose. The event itself, on the other hand, is very important. If you filter out or ignore a quit event then it is impossible for the user to close the window. On the other hand, if you do accept a quit event then the application window will be closed, and screen updates will still report success event though the application will no longer be visible.</P | |
162 ><DIV | |
163 CLASS="NOTE" | |
164 ><BLOCKQUOTE | |
165 CLASS="NOTE" | |
166 ><P | |
167 ><B | |
168 >Note: </B | |
169 >The macro <TT | |
170 CLASS="FUNCTION" | |
171 >SDL_QuitRequested</TT | |
172 > will return non-zero if a quit event is pending</P | |
173 ></BLOCKQUOTE | |
174 ></DIV | |
175 ></DIV | |
176 ><DIV | |
177 CLASS="REFSECT1" | |
178 ><A | |
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179 NAME="AEN4648" |
0 | 180 ></A |
181 ><H2 | |
182 >See Also</H2 | |
183 ><P | |
184 ><A | |
185 HREF="sdlevent.html" | |
186 ><SPAN | |
187 CLASS="STRUCTNAME" | |
188 >SDL_Event</SPAN | |
189 ></A | |
190 >, | |
191 <A | |
192 HREF="sdlseteventfilter.html" | |
193 ><TT | |
194 CLASS="FUNCTION" | |
195 >SDL_SetEventFilter</TT | |
196 ></A | |
197 ></P | |
198 ></DIV | |
199 ><DIV | |
200 CLASS="NAVFOOTER" | |
201 ><HR | |
202 ALIGN="LEFT" | |
203 WIDTH="100%"><TABLE | |
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204 SUMMARY="Footer navigation table" |
0 | 205 WIDTH="100%" |
206 BORDER="0" | |
207 CELLPADDING="0" | |
208 CELLSPACING="0" | |
209 ><TR | |
210 ><TD | |
211 WIDTH="33%" | |
212 ALIGN="left" | |
213 VALIGN="top" | |
214 ><A | |
215 HREF="sdluserevent.html" | |
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216 ACCESSKEY="P" |
0 | 217 >Prev</A |
218 ></TD | |
219 ><TD | |
220 WIDTH="34%" | |
221 ALIGN="center" | |
222 VALIGN="top" | |
223 ><A | |
224 HREF="index.html" | |
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225 ACCESSKEY="H" |
0 | 226 >Home</A |
227 ></TD | |
228 ><TD | |
229 WIDTH="33%" | |
230 ALIGN="right" | |
231 VALIGN="top" | |
232 ><A | |
233 HREF="sdlkeysym.html" | |
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355632dca928
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parents:
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234 ACCESSKEY="N" |
0 | 235 >Next</A |
236 ></TD | |
237 ></TR | |
238 ><TR | |
239 ><TD | |
240 WIDTH="33%" | |
241 ALIGN="left" | |
242 VALIGN="top" | |
243 >SDL_UserEvent</TD | |
244 ><TD | |
245 WIDTH="34%" | |
246 ALIGN="center" | |
247 VALIGN="top" | |
248 ><A | |
249 HREF="eventstructures.html" | |
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250 ACCESSKEY="U" |
0 | 251 >Up</A |
252 ></TD | |
253 ><TD | |
254 WIDTH="33%" | |
255 ALIGN="right" | |
256 VALIGN="top" | |
257 >SDL_keysym</TD | |
258 ></TR | |
259 ></TABLE | |
260 ></DIV | |
261 ></BODY | |
262 ></HTML | |
263 > |