Mercurial > sdl-ios-xcode
comparison docs/html/sdljoystickopen.html @ 0:74212992fb08
Initial revision
author | Sam Lantinga <slouken@lokigames.com> |
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date | Thu, 26 Apr 2001 16:45:43 +0000 |
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children | 55f1f1b3e27d |
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1 <HTML | |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_JoystickOpen</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
7 CONTENT="Modular DocBook HTML Stylesheet Version 1.61 | |
8 "><LINK | |
9 REL="HOME" | |
10 TITLE="SDL Library Documentation" | |
11 HREF="index.html"><LINK | |
12 REL="UP" | |
13 TITLE="Joystick" | |
14 HREF="joystick.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_JoystickName" | |
17 HREF="sdljoystickname.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_JoystickOpened" | |
20 HREF="sdljoystickopened.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="sdljoystickname.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="sdljoystickopened.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="SDLJOYSTICKOPEN" | |
71 >SDL_JoystickOpen</A | |
72 ></H1 | |
73 ><DIV | |
74 CLASS="REFNAMEDIV" | |
75 ><A | |
76 NAME="AEN5474" | |
77 ></A | |
78 ><H2 | |
79 >Name</H2 | |
80 >SDL_JoystickOpen -- Opens a joystick for use.</DIV | |
81 ><DIV | |
82 CLASS="REFSYNOPSISDIV" | |
83 ><A | |
84 NAME="AEN5477" | |
85 ></A | |
86 ><H2 | |
87 >Synopsis</H2 | |
88 ><DIV | |
89 CLASS="FUNCSYNOPSIS" | |
90 ><A | |
91 NAME="AEN5478" | |
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_Joystick *<B | |
103 CLASS="FSFUNC" | |
104 >SDL_JoystickOpen</B | |
105 ></CODE | |
106 >(int index);</CODE | |
107 ></P | |
108 ><P | |
109 ></P | |
110 ></DIV | |
111 ></DIV | |
112 ><DIV | |
113 CLASS="REFSECT1" | |
114 ><A | |
115 NAME="AEN5484" | |
116 ></A | |
117 ><H2 | |
118 >Description</H2 | |
119 ><P | |
120 >Opens a joystick for use within SDL. The <TT | |
121 CLASS="PARAMETER" | |
122 ><I | |
123 >index</I | |
124 ></TT | |
125 > refers to the N'th joystick in the system. A joystick must be opened before it game be used.</P | |
126 ></DIV | |
127 ><DIV | |
128 CLASS="REFSECT1" | |
129 ><A | |
130 NAME="AEN5488" | |
131 ></A | |
132 ><H2 | |
133 >Return Value</H2 | |
134 ><P | |
135 >Returns a <SPAN | |
136 CLASS="STRUCTNAME" | |
137 >SDL_Joystick</SPAN | |
138 > structure on success. <SPAN | |
139 CLASS="RETURNVALUE" | |
140 >NULL</SPAN | |
141 > on failure.</P | |
142 ></DIV | |
143 ><DIV | |
144 CLASS="REFSECT1" | |
145 ><A | |
146 NAME="AEN5493" | |
147 ></A | |
148 ><H2 | |
149 >Examples</H2 | |
150 ><P | |
151 ><PRE | |
152 CLASS="PROGRAMLISTING" | |
153 >SDL_Joystick *joy; | |
154 // Check for joystick | |
155 if(SDL_NumJoysticks()>0){ | |
156 // Open joystick | |
157 joy=SDL_JoystickOpen(0); | |
158 | |
159 if(joy) | |
160 { | |
161 printf("Opened Joystick 0\n"); | |
162 printf("Name: %s\n", SDL_JoystickName(0)); | |
163 printf("Number of Axes: %s\n", SDL_JoystickNumAxes(joy)); | |
164 printf("Number of Buttons: %s\n", SDL_JoystickNumButtons(joy)); | |
165 printf("Number of Balls: %s\n", SDL_JoystickNumBalls(joy)); | |
166 } | |
167 else | |
168 printf("Couldn't open Joystick 0\n"); | |
169 | |
170 // Close if opened | |
171 if(SDL_JoystickOpened(0)) | |
172 SDL_JoystickClose(joy); | |
173 }</PRE | |
174 ></P | |
175 ></DIV | |
176 ><DIV | |
177 CLASS="REFSECT1" | |
178 ><A | |
179 NAME="AEN5497" | |
180 ></A | |
181 ><H2 | |
182 >See Also</H2 | |
183 ><P | |
184 ><A | |
185 HREF="sdljoystickclose.html" | |
186 ><TT | |
187 CLASS="FUNCTION" | |
188 >SDL_JoystickClose</TT | |
189 ></A | |
190 ></P | |
191 ></DIV | |
192 ><DIV | |
193 CLASS="NAVFOOTER" | |
194 ><HR | |
195 ALIGN="LEFT" | |
196 WIDTH="100%"><TABLE | |
197 WIDTH="100%" | |
198 BORDER="0" | |
199 CELLPADDING="0" | |
200 CELLSPACING="0" | |
201 ><TR | |
202 ><TD | |
203 WIDTH="33%" | |
204 ALIGN="left" | |
205 VALIGN="top" | |
206 ><A | |
207 HREF="sdljoystickname.html" | |
208 >Prev</A | |
209 ></TD | |
210 ><TD | |
211 WIDTH="34%" | |
212 ALIGN="center" | |
213 VALIGN="top" | |
214 ><A | |
215 HREF="index.html" | |
216 >Home</A | |
217 ></TD | |
218 ><TD | |
219 WIDTH="33%" | |
220 ALIGN="right" | |
221 VALIGN="top" | |
222 ><A | |
223 HREF="sdljoystickopened.html" | |
224 >Next</A | |
225 ></TD | |
226 ></TR | |
227 ><TR | |
228 ><TD | |
229 WIDTH="33%" | |
230 ALIGN="left" | |
231 VALIGN="top" | |
232 >SDL_JoystickName</TD | |
233 ><TD | |
234 WIDTH="34%" | |
235 ALIGN="center" | |
236 VALIGN="top" | |
237 ><A | |
238 HREF="joystick.html" | |
239 >Up</A | |
240 ></TD | |
241 ><TD | |
242 WIDTH="33%" | |
243 ALIGN="right" | |
244 VALIGN="top" | |
245 >SDL_JoystickOpened</TD | |
246 ></TR | |
247 ></TABLE | |
248 ></DIV | |
249 ></BODY | |
250 ></HTML | |
251 > |