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Ajouts des libs windows
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4 >Joystick</TITLE
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75 ><DIV
76 CLASS="CHAPTER"
77 ><H1
78 ><A
79 NAME="JOYSTICK"
80 ></A
81 >Chapter 9. Joystick</H1
82 ><DIV
83 CLASS="TOC"
84 ><DL
85 ><DT
86 ><B
87 >Table of Contents</B
88 ></DT
89 ><DT
90 ><A
91 HREF="sdlnumjoysticks.html"
92 >SDL_NumJoysticks</A
93 >&nbsp;--&nbsp;Count available joysticks.</DT
94 ><DT
95 ><A
96 HREF="sdljoystickname.html"
97 >SDL_JoystickName</A
98 >&nbsp;--&nbsp;Get joystick name.</DT
99 ><DT
100 ><A
101 HREF="sdljoystickopen.html"
102 >SDL_JoystickOpen</A
103 >&nbsp;--&nbsp;Opens a joystick for use.</DT
104 ><DT
105 ><A
106 HREF="sdljoystickopened.html"
107 >SDL_JoystickOpened</A
108 >&nbsp;--&nbsp;Determine if a joystick has been opened</DT
109 ><DT
110 ><A
111 HREF="sdljoystickindex.html"
112 >SDL_JoystickIndex</A
113 >&nbsp;--&nbsp;Get the index of an SDL_Joystick.</DT
114 ><DT
115 ><A
116 HREF="sdljoysticknumaxes.html"
117 >SDL_JoystickNumAxes</A
118 >&nbsp;--&nbsp;Get the number of joystick axes</DT
119 ><DT
120 ><A
121 HREF="sdljoysticknumballs.html"
122 >SDL_JoystickNumBalls</A
123 >&nbsp;--&nbsp;Get the number of joystick trackballs</DT
124 ><DT
125 ><A
126 HREF="sdljoysticknumhats.html"
127 >SDL_JoystickNumHats</A
128 >&nbsp;--&nbsp;Get the number of joystick hats</DT
129 ><DT
130 ><A
131 HREF="sdljoysticknumbuttons.html"
132 >SDL_JoystickNumButtons</A
133 >&nbsp;--&nbsp;Get the number of joysitck buttons</DT
134 ><DT
135 ><A
136 HREF="sdljoystickupdate.html"
137 >SDL_JoystickUpdate</A
138 >&nbsp;--&nbsp;Updates the state of all joysticks</DT
139 ><DT
140 ><A
141 HREF="sdljoystickgetaxis.html"
142 >SDL_JoystickGetAxis</A
143 >&nbsp;--&nbsp;Get the current state of an axis</DT
144 ><DT
145 ><A
146 HREF="sdljoystickgethat.html"
147 >SDL_JoystickGetHat</A
148 >&nbsp;--&nbsp;Get the current state of a joystick hat</DT
149 ><DT
150 ><A
151 HREF="sdljoystickgetbutton.html"
152 >SDL_JoystickGetButton</A
153 >&nbsp;--&nbsp;Get the current state of a given button on a given joystick</DT
154 ><DT
155 ><A
156 HREF="sdljoystickgetball.html"
157 >SDL_JoystickGetBall</A
158 >&nbsp;--&nbsp;Get relative trackball motion</DT
159 ><DT
160 ><A
161 HREF="sdljoystickclose.html"
162 >SDL_JoystickClose</A
163 >&nbsp;--&nbsp;Closes a previously opened joystick</DT
164 ></DL
165 ></DIV
166 ><P
167 >Joysticks, and other similar input devices, have a very strong role in game playing and SDL provides comprehensive support for them. Axes, Buttons, POV Hats and trackballs are all supported.</P
168 ><P
169 >Joystick support is initialized by passed the <TT
170 CLASS="LITERAL"
171 >SDL_INIT_JOYSTICK</TT
172 > flag to <A
173 HREF="sdlinit.html"
174 ><TT
175 CLASS="FUNCTION"
176 >SDL_Init</TT
177 ></A
178 >. Once initilized joysticks must be opened using <A
179 HREF="sdljoystickopen.html"
180 ><TT
181 CLASS="FUNCTION"
182 >SDL_JoystickOpen</TT
183 ></A
184 >.</P
185 ><P
186 >While using the functions describe in this secton may seem like the best way to access and read from joysticks, in most cases they aren't. Ideally joysticks should be read using the <A
187 HREF="event.html"
188 >event</A
189 > system. To enable this, you must set the joystick event processing state with <A
190 HREF="sdljoystickeventstate.html"
191 ><TT
192 CLASS="FUNCTION"
193 >SDL_JoystickEventState</TT
194 ></A
195 >. Joysticks must be <A
196 HREF="sdljoystickopen.html"
197 >opened</A
198 > before they can be used of course.</P
199 ><DIV
200 CLASS="NOTE"
201 ><BLOCKQUOTE
202 CLASS="NOTE"
203 ><P
204 ><B
205 >Note: </B
206 >If you are <SPAN
207 CLASS="emphasis"
208 ><I
209 CLASS="EMPHASIS"
210 >not</I
211 ></SPAN
212 > handling the joystick via the event queue then you must explicitly request a joystick update by calling <A
213 HREF="sdljoystickupdate.html"
214 ><TT
215 CLASS="FUNCTION"
216 >SDL_JoystickUpdate</TT
217 ></A
218 >.</P
219 ></BLOCKQUOTE
220 ></DIV
221 ><DIV
222 CLASS="NOTE"
223 ><BLOCKQUOTE
224 CLASS="NOTE"
225 ><P
226 ><B
227 >Note: </B
228 >Force Feedback is not yet support. Sam (slouken@libsdl.org) is soliciting suggestions from people with force-feedback experience on the best wat to desgin the API.</P
229 ></BLOCKQUOTE
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