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| >SDL_JoystickOpen</H1 |
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| NAME="AEN6096" |
| ></A |
| ><H2 |
| >Name</H2 |
| >SDL_JoystickOpen -- Opens a joystick for use.</DIV |
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| CLASS="REFSYNOPSISDIV" |
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| NAME="AEN6099" |
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| >Synopsis</H2 |
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| ><PRE |
| CLASS="FUNCSYNOPSISINFO" |
| >#include "SDL.h"</PRE |
| ><P |
| ><CODE |
| ><CODE |
| CLASS="FUNCDEF" |
| >SDL_Joystick *<B |
| CLASS="FSFUNC" |
| >SDL_JoystickOpen</B |
| ></CODE |
| >(int index);</CODE |
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| ><H2 |
| >Description</H2 |
| ><P |
| >Opens a joystick for use within SDL. The <TT |
| CLASS="PARAMETER" |
| ><I |
| >index</I |
| ></TT |
| > refers to the N'th joystick in the system. A joystick must be opened before it game be used.</P |
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| CLASS="REFSECT1" |
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| NAME="AEN6110" |
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| ><H2 |
| >Return Value</H2 |
| ><P |
| >Returns a <SPAN |
| CLASS="STRUCTNAME" |
| >SDL_Joystick</SPAN |
| > structure on success. <SPAN |
| CLASS="RETURNVALUE" |
| >NULL</SPAN |
| > on failure.</P |
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| >Examples</H2 |
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| ><PRE |
| CLASS="PROGRAMLISTING" |
| >SDL_Joystick *joy; |
| // Check for joystick |
| if(SDL_NumJoysticks()>0){ |
| // Open joystick |
| joy=SDL_JoystickOpen(0); |
| |
| if(joy) |
| { |
| printf("Opened Joystick 0\n"); |
| printf("Name: %s\n", SDL_JoystickName(0)); |
| printf("Number of Axes: %d\n", SDL_JoystickNumAxes(joy)); |
| printf("Number of Buttons: %d\n", SDL_JoystickNumButtons(joy)); |
| printf("Number of Balls: %d\n", SDL_JoystickNumBalls(joy)); |
| } |
| else |
| printf("Couldn't open Joystick 0\n"); |
| |
| // Close if opened |
| if(SDL_JoystickOpened(0)) |
| SDL_JoystickClose(joy); |
| }</PRE |
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| ><H2 |
| >See Also</H2 |
| ><P |
| ><A |
| HREF="sdljoystickclose.html" |
| ><TT |
| CLASS="FUNCTION" |
| >SDL_JoystickClose</TT |
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