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