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| 5131 | clevermous | 1 | |
| 2 | > |
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| 3 | > |
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| 4 | >SDL_JoystickGetAxis |
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| 5 | > |
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| 6 | NAME="GENERATOR" |
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| 7 | CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
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| 8 | "> |
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| 9 | REL="HOME" |
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| 10 | TITLE="SDL Library Documentation" |
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| 11 | HREF="index.html"> |
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| 12 | REL="UP" |
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| 13 | TITLE="Joystick" |
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| 14 | HREF="joystick.html"> |
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| 15 | REL="PREVIOUS" |
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| 16 | TITLE="SDL_JoystickUpdate" |
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| 17 | HREF="sdljoystickupdate.html"> |
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| 18 | REL="NEXT" |
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| 19 | TITLE="SDL_JoystickGetHat" |
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| 20 | HREF="sdljoystickgethat.html"> |
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| 21 | > |
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| 22 | CLASS="REFENTRY" |
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| 23 | BGCOLOR="#FFF8DC" |
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| 24 | TEXT="#000000" |
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| 25 | LINK="#0000ee" |
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| 26 | VLINK="#551a8b" |
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| 27 | ALINK="#ff0000" |
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| 28 | > |
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| 29 | CLASS="NAVHEADER" |
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| 30 | > |
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| 31 | WIDTH="100%" |
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| 32 | BORDER="0" |
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| 33 | CELLPADDING="0" |
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| 34 | CELLSPACING="0" |
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| 35 | > |
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| 36 | > |
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| 37 | COLSPAN="3" |
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| 38 | ALIGN="center" |
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| 39 | >SDL Library Documentation |
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| 40 | > |
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| 41 | > |
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| 42 | > |
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| 43 | WIDTH="10%" |
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| 44 | ALIGN="left" |
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| 45 | VALIGN="bottom" |
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| 46 | > |
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| 47 | HREF="sdljoystickupdate.html" |
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| 48 | >Prev |
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| 49 | > |
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| 50 | > |
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| 51 | WIDTH="80%" |
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| 52 | ALIGN="center" |
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| 53 | VALIGN="bottom" |
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| 54 | > |
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| 55 | > |
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| 56 | WIDTH="10%" |
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| 57 | ALIGN="right" |
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| 58 | VALIGN="bottom" |
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| 59 | > |
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| 60 | HREF="sdljoystickgethat.html" |
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| 61 | >Next |
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| 62 | > |
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| 63 | > |
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| 64 | > |
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| 65 | > |
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| 66 | ALIGN="LEFT" |
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| 67 | WIDTH="100%"> |
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| 68 | > |
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| 69 | > |
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| 70 | NAME="SDLJOYSTICKGETAXIS" |
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| 71 | >SDL_JoystickGetAxis |
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| 72 | > |
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| 73 | > |
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| 74 | CLASS="REFNAMEDIV" |
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| 75 | > |
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| 76 | NAME="AEN5773" |
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| 77 | > |
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| 78 | > |
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| 79 | >Name |
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| 80 | >SDL_JoystickGetAxis -- Get the current state of an axis |
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| 81 | > |
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| 82 | CLASS="REFSYNOPSISDIV" |
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| 83 | > |
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| 84 | NAME="AEN5776" |
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| 85 | > |
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| 86 | > |
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| 87 | >Synopsis |
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| 88 | > |
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| 89 | CLASS="FUNCSYNOPSIS" |
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| 90 | > |
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| 91 | NAME="AEN5777" |
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| 92 | > |
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| 93 | > |
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| 94 | > |
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| 95 | > |
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| 96 | CLASS="FUNCSYNOPSISINFO" |
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| 97 | >#include "SDL.h" |
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| 98 | > |
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| 99 | > |
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| 100 | > |
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| 101 | CLASS="FUNCDEF" |
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| 102 | >Sint16 |
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| 103 | CLASS="FSFUNC" |
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| 104 | >SDL_JoystickGetAxis |
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| 105 | > |
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| 106 | >(SDL_Joystick *joystick, int axis); |
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| 107 | > |
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| 108 | > |
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| 109 | > |
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| 110 | > |
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| 111 | > |
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| 112 | > |
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| 113 | CLASS="REFSECT1" |
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| 114 | > |
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| 115 | NAME="AEN5783" |
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| 116 | > |
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| 117 | > |
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| 118 | >Description |
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| 119 | > |
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| 120 | > |
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| 121 | CLASS="FUNCTION" |
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| 122 | >SDL_JoystickGetAxis |
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| 123 | > returns the current state of the given |
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| 124 | CLASS="PARAMETER" |
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| 125 | > |
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| 126 | >axis |
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| 127 | > |
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| 128 | > on the given |
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| 129 | CLASS="PARAMETER" |
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| 130 | > |
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| 131 | >joystick |
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| 132 | > |
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| 133 | >. |
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| 134 | > |
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| 135 | >On most modern joysticks the X axis is usually represented by |
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| 136 | CLASS="PARAMETER" |
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| 137 | > |
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| 138 | >axis |
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| 139 | > |
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| 140 | > 0 and the Y axis by |
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| 141 | CLASS="PARAMETER" |
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| 142 | > |
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| 143 | >axis |
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| 144 | > |
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| 145 | > 1. The value returned by |
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| 146 | CLASS="FUNCTION" |
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| 147 | >SDL_JoystickGetAxis |
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| 148 | > is a signed integer (-32768 to 32768) representing the current position of the |
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| 149 | CLASS="PARAMETER" |
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| 150 | > |
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| 151 | >axis |
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| 152 | > |
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| 153 | >, it maybe necessary to impose certain tolerances on these values to account for jitter. It is worth noting that some joysticks use axes 2 and 3 for extra buttons. |
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| 154 | > |
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| 155 | > |
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| 156 | CLASS="REFSECT1" |
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| 157 | > |
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| 158 | NAME="AEN5794" |
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| 159 | > |
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| 160 | > |
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| 161 | >Return Value |
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| 162 | > |
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| 163 | >Returns a 16-bit signed integer representing the current position of the |
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| 164 | CLASS="PARAMETER" |
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| 165 | > |
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| 166 | >axis |
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| 167 | > |
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| 168 | >. |
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| 169 | > |
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| 170 | > |
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| 171 | CLASS="REFSECT1" |
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| 172 | > |
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| 173 | NAME="AEN5798" |
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| 174 | > |
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| 175 | > |
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| 176 | >Examples |
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| 177 | > |
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| 178 | > |
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| 179 | CLASS="PROGRAMLISTING" |
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| 180 | >Sint16 x_move, y_move; |
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| 181 | SDL_Joystick *joy1; |
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| 182 | . |
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| 183 | . |
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| 184 | x_move=SDL_JoystickGetAxis(joy1, 0); |
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| 185 | y_move=SDL_JoystickGetAxis(joy1, 1); |
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| 186 | > |
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| 187 | > |
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| 188 | > |
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| 189 | CLASS="REFSECT1" |
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| 190 | > |
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| 191 | NAME="AEN5802" |
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| 192 | > |
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| 193 | > |
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| 194 | >See Also |
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| 195 | > |
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| 196 | > |
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| 197 | HREF="sdljoysticknumaxes.html" |
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| 198 | > |
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| 199 | CLASS="FUNCTION" |
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| 200 | >SDL_JoystickNumAxes |
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| 201 | > |
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| 202 | > |
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| 203 | > |
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| 204 | > |
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| 205 | CLASS="NAVFOOTER" |
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| 206 | > |
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| 207 | ALIGN="LEFT" |
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| 208 | WIDTH="100%"> |
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| 209 | WIDTH="100%" |
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| 210 | BORDER="0" |
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| 211 | CELLPADDING="0" |
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| 212 | CELLSPACING="0" |
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| 213 | > |
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| 214 | > |
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| 215 | WIDTH="33%" |
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| 216 | ALIGN="left" |
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| 217 | VALIGN="top" |
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| 218 | > |
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| 219 | HREF="sdljoystickupdate.html" |
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| 220 | >Prev |
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| 221 | > |
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| 222 | > |
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| 223 | WIDTH="34%" |
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| 224 | ALIGN="center" |
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| 225 | VALIGN="top" |
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| 226 | > |
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| 227 | HREF="index.html" |
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| 228 | >Home |
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| 229 | > |
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| 230 | > |
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| 231 | WIDTH="33%" |
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| 232 | ALIGN="right" |
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| 233 | VALIGN="top" |
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| 234 | > |
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| 235 | HREF="sdljoystickgethat.html" |
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| 236 | >Next |
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| 237 | > |
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| 238 | > |
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| 239 | > |
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| 240 | > |
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| 241 | WIDTH="33%" |
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| 242 | ALIGN="left" |
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| 243 | VALIGN="top" |
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| 244 | >SDL_JoystickUpdate |
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| 245 | > |
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| 246 | WIDTH="34%" |
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| 247 | ALIGN="center" |
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| 248 | VALIGN="top" |
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| 249 | > |
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| 250 | HREF="joystick.html" |
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| 251 | >Up |
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| 252 | > |
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| 253 | > |
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| 254 | WIDTH="33%" |
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| 255 | ALIGN="right" |
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| 256 | VALIGN="top" |
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| 257 | >SDL_JoystickGetHat |
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| 258 | > |
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| 259 | > |
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| 260 | > |
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| 261 | > |
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| 262 | > |
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| 263 | > |