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view docs/html/sdljoyhatevent.html @ 3958:85b6fb6a5e3c SDL-1.2

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Actually, this is a better fix...clear the error state once if everything we need loaded; it's more efficient, and works even if the last unnecessary xrandr symbol failed to load. Otherwise, leave the original loadso error, so the end user can find out what symbol failed.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 13 Jun 2007 08:00:10 +0000
parents 355632dca928
children
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<HTML
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><TITLE
>SDL_JoyHatEvent</TITLE
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><HR
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><H1
><A
NAME="SDLJOYHATEVENT"
></A
>SDL_JoyHatEvent</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN4320"
></A
><H2
>Name</H2
>SDL_JoyHatEvent&nbsp;--&nbsp;Joystick hat position change event structure</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4323"
></A
><H2
>Structure Definition</H2
><PRE
CLASS="PROGRAMLISTING"
>typedef struct{
  Uint8 type;
  Uint8 which;
  Uint8 hat;
  Uint8 value;
} SDL_JoyHatEvent;</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4326"
></A
><H2
>Structure Data</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN4328"
></A
><P
></P
><TABLE
BORDER="0"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>type</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_JOY</TT
></TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>which</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Joystick device index</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>hat</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Joystick hat index</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>value</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Hat position</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4348"
></A
><H2
>Description</H2
><P
><SPAN
CLASS="STRUCTNAME"
>SDL_JoyHatEvent</SPAN
> is a member of the <A
HREF="sdlevent.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
></A
> union and is used when an event of type <TT
CLASS="LITERAL"
>SDL_JOYHATMOTION</TT
> is reported.</P
><P
>A <TT
CLASS="LITERAL"
>SDL_JOYHATMOTION</TT
> event occurs when ever a user moves a hat on the joystick. The field <TT
CLASS="STRUCTFIELD"
><I
>which</I
></TT
> is the index of the joystick that reported the event and <TT
CLASS="STRUCTFIELD"
><I
>hat</I
></TT
> is the index of the hat (for a more detailed exlaination see the <A
HREF="joystick.html"
>Joystick section</A
>). <TT
CLASS="STRUCTFIELD"
><I
>value</I
></TT
> is the current position of the hat. It is a logically OR'd combination of the following values (whose meanings should be pretty obvious:) :</P
><P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_CENTERED</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_UP</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_RIGHT</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_DOWN</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_LEFT</TT
></TD
></TR
></TBODY
></TABLE
><P
></P
><P
>The following defines are also provided:</P
><P
></P
><TABLE
BORDER="0"
><TBODY
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_RIGHTUP</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_RIGHTDOWN</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_LEFTUP</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>SDL_HAT_LEFTDOWN</TT
></TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4382"
></A
><H2
>See Also</H2
><P
><A
HREF="sdlevent.html"
><SPAN
CLASS="STRUCTNAME"
>SDL_Event</SPAN
></A
>,
<A
HREF="joystick.html"
>Joystick Functions</A
>,
<A
HREF="sdljoystickeventstate.html"
><TT
CLASS="FUNCTION"
>SDL_JoystickEventState</TT
></A
>,
<A
HREF="sdljoystickgetball.html"
><TT
CLASS="FUNCTION"
>SDL_JoystickGetHat</TT
></A
></P
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