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Import Recast Navigation as third party dependency Credits go to Mikko Mononen memon at inside dot org
340 lines
No EOL
4.4 KiB
HTML
340 lines
No EOL
4.4 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>SDL_JoyBallEvent</TITLE
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><META
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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"><LINK
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REL="HOME"
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TITLE="SDL Library Documentation"
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HREF="index.html"><LINK
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REL="UP"
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TITLE="SDL Event Structures."
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HREF="eventstructures.html"><LINK
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REL="PREVIOUS"
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TITLE="SDL_JoyHatEvent"
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HREF="sdljoyhatevent.html"><LINK
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REL="NEXT"
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TITLE="SDL_ResizeEvent"
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HREF="sdlresizeevent.html"></HEAD
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><BODY
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CLASS="REFENTRY"
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BGCOLOR="#FFF8DC"
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VLINK="#551a8b"
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><DIV
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SUMMARY="Header navigation table"
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><TR
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><TH
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COLSPAN="3"
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ALIGN="center"
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>SDL Library Documentation</TH
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></TR
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><TR
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><TD
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WIDTH="10%"
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ALIGN="left"
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VALIGN="bottom"
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><A
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HREF="sdljoyhatevent.html"
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ACCESSKEY="P"
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>Prev</A
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></TD
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><TD
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WIDTH="80%"
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><TD
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WIDTH="10%"
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ALIGN="right"
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VALIGN="bottom"
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><A
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HREF="sdlresizeevent.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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></TABLE
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><HR
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ALIGN="LEFT"
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WIDTH="100%"></DIV
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><H1
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><A
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NAME="SDLJOYBALLEVENT"
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></A
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>SDL_JoyBallEvent</H1
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><DIV
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CLASS="REFNAMEDIV"
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><A
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NAME="AEN4396"
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></A
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><H2
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>Name</H2
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>SDL_JoyBallEvent -- Joystick trackball motion event structure</DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN4399"
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></A
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><H2
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>Structure Definition</H2
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><PRE
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CLASS="PROGRAMLISTING"
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>typedef struct{
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Uint8 type;
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Uint8 which;
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Uint8 ball;
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Sint16 xrel, yrel;
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} SDL_JoyBallEvent;</PRE
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN4402"
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></A
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><H2
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>Structure Data</H2
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><DIV
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CLASS="INFORMALTABLE"
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><A
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NAME="AEN4404"
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></A
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><P
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></P
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><TABLE
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BORDER="0"
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CLASS="CALSTABLE"
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><TBODY
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><TT
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CLASS="STRUCTFIELD"
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><I
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>type</I
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></TT
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><TT
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CLASS="LITERAL"
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>SDL_JOYBALLMOTION</TT
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></TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><TT
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CLASS="STRUCTFIELD"
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><I
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>which</I
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></TT
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>Joystick device index</TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><TT
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CLASS="STRUCTFIELD"
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><I
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>ball</I
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></TT
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>Joystick trackball index</TD
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></TR
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><TR
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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><TT
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CLASS="STRUCTFIELD"
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><I
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>xrel</I
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></TT
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>, <TT
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CLASS="STRUCTFIELD"
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><I
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>yrel</I
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></TT
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></TD
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><TD
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ALIGN="LEFT"
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VALIGN="TOP"
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>The relative motion in the X/Y direction</TD
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></TR
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></TBODY
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></TABLE
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><P
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></P
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></DIV
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN4425"
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></A
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><H2
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>Description</H2
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><P
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><SPAN
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CLASS="STRUCTNAME"
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>SDL_JoyBallEvent</SPAN
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> is a member of the <A
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HREF="sdlevent.html"
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><SPAN
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CLASS="STRUCTNAME"
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>SDL_Event</SPAN
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></A
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> union and is used when an event of type <TT
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CLASS="LITERAL"
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>SDL_JOYBALLMOTION</TT
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> is reported.</P
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><P
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>A <TT
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CLASS="LITERAL"
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>SDL_JOYBALLMOTION</TT
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> event occurs when a user moves a trackball on the joystick. The field <TT
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CLASS="STRUCTFIELD"
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><I
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>which</I
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></TT
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> is the index of the joystick that reported the event and <TT
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CLASS="STRUCTFIELD"
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><I
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>ball</I
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></TT
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> is the index of the trackball (for a more detailed explaination see the <A
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HREF="joystick.html"
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>Joystick section</A
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>). Trackballs only return relative motion, this is the change in position on the ball since it was last polled (last cycle of the event loop) and it is stored in <TT
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CLASS="STRUCTFIELD"
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><I
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>xrel</I
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></TT
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> and <TT
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CLASS="STRUCTFIELD"
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><I
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>yrel</I
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></TT
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>.</P
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></DIV
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><DIV
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CLASS="REFSECT1"
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><A
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NAME="AEN4439"
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></A
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><H2
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>See Also</H2
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><P
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><A
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HREF="sdlevent.html"
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><SPAN
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CLASS="STRUCTNAME"
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>SDL_Event</SPAN
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></A
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>,
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<A
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HREF="joystick.html"
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>Joystick Functions</A
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>,
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<A
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HREF="sdljoystickeventstate.html"
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><TT
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CLASS="FUNCTION"
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>SDL_JoystickEventState</TT
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></A
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>,
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<A
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HREF="sdljoystickgetball.html"
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><TT
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CLASS="FUNCTION"
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>SDL_JoystickGetBall</TT
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></A
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></P
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></DIV
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><DIV
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CLASS="NAVFOOTER"
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><HR
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ALIGN="LEFT"
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WIDTH="100%"><TABLE
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SUMMARY="Footer navigation table"
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><TR
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><TD
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
|
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><A
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HREF="sdljoyhatevent.html"
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ACCESSKEY="P"
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>Prev</A
|
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></TD
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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HREF="index.html"
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>Home</A
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HREF="sdlresizeevent.html"
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ACCESSKEY="N"
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>Next</A
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></TD
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></TR
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><TR
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><TD
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WIDTH="33%"
|
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ALIGN="left"
|
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VALIGN="top"
|
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>SDL_JoyHatEvent</TD
|
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><TD
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WIDTH="34%"
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ALIGN="center"
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VALIGN="top"
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HREF="eventstructures.html"
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>Up</A
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WIDTH="33%"
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ALIGN="right"
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VALIGN="top"
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>SDL_ResizeEvent</TD
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> |