Mercurial > sdl-ios-xcode
annotate docs/html/sdlgeteventfilter.html @ 1282:217f5d5a49e5
Date: Sat, 15 Jan 2005 02:01:51 +0000 (UTC)
From: jimrandomh
Subject: [SDL] Re: Modifier keys pressed during initialization stick
I wrote a simple test program which initializes SDL, prints the SDL
version number, then prints any keydown and keyup events with their
modifiers. (Source code below). Compilation was done using Visual
Studio 6, release mode.
My test sequence was:
Start a command prompt. Type the name of the test program.
shift down
enter down (program starts)
Wait for window to appear
enter up
shift up
spacebar down
spacebar up
Under Windows 98, the output was correct:
SDL 1.2.8
left shift down
shift-return down
shift-return up
left shift up
space down
space up
Under Windows 2000 and under Windows XP, the output was:
SDL 1.2.8
shift-space down
shift-space up
Since shift was not held at the time space was pressed, this is
incorrect. Similar results were observed with launching in different
ways (including double-clicking in Windows Explorer), so it does not
depend on the launching terminal.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 29 Jan 2006 07:57:13 +0000 |
parents | 355632dca928 |
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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 1.76b+ |
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 | |
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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="sdlseteventfilter.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="sdleventstate.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="SDLGETEVENTFILTER" | |
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74 ></A |
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75 >SDL_GetEventFilter</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN5615" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_GetEventFilter -- Retrieves a pointer to he event filter</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN5618" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN5619" |
0 | 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 >SDL_EventFilter <B | |
106 CLASS="FSFUNC" | |
107 >SDL_GetEventFilter</B | |
108 ></CODE | |
109 >(void);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN5625" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >This function retrieces a pointer to the event filter that was previously set using <A | |
124 HREF="sdlseteventfilter.html" | |
125 ><TT | |
126 CLASS="FUNCTION" | |
127 >SDL_SetEventFilter</TT | |
128 ></A | |
129 >. An SDL_EventFilter function is defined as: | |
130 <PRE | |
131 CLASS="PROGRAMLISTING" | |
132 >typedef int (*SDL_EventFilter)(const SDL_Event *event);</PRE | |
133 ></P | |
134 ></DIV | |
135 ><DIV | |
136 CLASS="REFSECT1" | |
137 ><A | |
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138 NAME="AEN5631" |
0 | 139 ></A |
140 ><H2 | |
141 >Return Value</H2 | |
142 ><P | |
143 >Returns a pointer to the event filter or <TT | |
144 CLASS="LITERAL" | |
145 >NULL</TT | |
146 > if no filter has been set.</P | |
147 ></DIV | |
148 ><DIV | |
149 CLASS="REFSECT1" | |
150 ><A | |
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151 NAME="AEN5635" |
0 | 152 ></A |
153 ><H2 | |
154 >See Also</H2 | |
155 ><P | |
156 ><A | |
157 HREF="sdlevent.html" | |
158 ><SPAN | |
159 CLASS="STRUCTNAME" | |
160 >SDL_Event</SPAN | |
161 ></A | |
162 >, | |
163 <A | |
164 HREF="sdlseteventfilter.html" | |
165 ><TT | |
166 CLASS="FUNCTION" | |
167 >SDL_SetEventFilter</TT | |
168 ></A | |
169 ></P | |
170 ></DIV | |
171 ><DIV | |
172 CLASS="NAVFOOTER" | |
173 ><HR | |
174 ALIGN="LEFT" | |
175 WIDTH="100%"><TABLE | |
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176 SUMMARY="Footer navigation table" |
0 | 177 WIDTH="100%" |
178 BORDER="0" | |
179 CELLPADDING="0" | |
180 CELLSPACING="0" | |
181 ><TR | |
182 ><TD | |
183 WIDTH="33%" | |
184 ALIGN="left" | |
185 VALIGN="top" | |
186 ><A | |
187 HREF="sdlseteventfilter.html" | |
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188 ACCESSKEY="P" |
0 | 189 >Prev</A |
190 ></TD | |
191 ><TD | |
192 WIDTH="34%" | |
193 ALIGN="center" | |
194 VALIGN="top" | |
195 ><A | |
196 HREF="index.html" | |
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197 ACCESSKEY="H" |
0 | 198 >Home</A |
199 ></TD | |
200 ><TD | |
201 WIDTH="33%" | |
202 ALIGN="right" | |
203 VALIGN="top" | |
204 ><A | |
205 HREF="sdleventstate.html" | |
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206 ACCESSKEY="N" |
0 | 207 >Next</A |
208 ></TD | |
209 ></TR | |
210 ><TR | |
211 ><TD | |
212 WIDTH="33%" | |
213 ALIGN="left" | |
214 VALIGN="top" | |
215 >SDL_SetEventFilter</TD | |
216 ><TD | |
217 WIDTH="34%" | |
218 ALIGN="center" | |
219 VALIGN="top" | |
220 ><A | |
221 HREF="eventfunctions.html" | |
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222 ACCESSKEY="U" |
0 | 223 >Up</A |
224 ></TD | |
225 ><TD | |
226 WIDTH="33%" | |
227 ALIGN="right" | |
228 VALIGN="top" | |
229 >SDL_EventState</TD | |
230 ></TR | |
231 ></TABLE | |
232 ></DIV | |
233 ></BODY | |
234 ></HTML | |
235 > |