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Date: Wed, 29 Mar 2006 17:26:55 +0200 CEST From: "Fran���is Revol" Subject: [SDL] BeOS port fix: PrintScreen key crashing It seems the latest SDL crashes when someone hits the PrtScrn key in ZETA (BeOS R6), somewhere it gets a negative value as key code (or a big unsigned maybe ?), and uses it as an index in the keysym table... I'll investigate the cause for the negative value, but it's always better to check for bounds correctly when indexing a table. The attached diff fixes it. Fran���is Revol -- Software Architect yellowTAB GmbH
author Sam Lantinga <slouken@libsdl.org>
date Fri, 31 Mar 2006 06:16:20 +0000
parents 355632dca928
children
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<HTML
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><TITLE
>SDL_JoyAxisEvent</TITLE
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><H1
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>SDL_JoyAxisEvent</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN4203"
></A
><H2
>Name</H2
>SDL_JoyAxisEvent&nbsp;--&nbsp;Joystick axis motion event structure</DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4206"
></A
><H2
>Structure Definition</H2
><PRE
CLASS="PROGRAMLISTING"
>typedef struct{
  Uint8 type;
  Uint8 which;
  Uint8 axis;
  Sint16 value;
} SDL_JoyAxisEvent;</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN4209"
></A
><H2
>Structure Data</H2
><DIV
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><P
></P
><TABLE
BORDER="0"
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><TBODY
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>type</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="LITERAL"
>SDL_JOYAXISMOTION</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
>axis</I
></TT
></TD
><TD
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>Joystick axis index</TD
></TR
><TR
><TD
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="STRUCTFIELD"
><I
>value</I
></TT
></TD
><TD
ALIGN="LEFT"
VALIGN="TOP"
>Axis value (range: -32768 to 32767)</TD
></TR
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></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
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><H2
>Description</H2
><P
><SPAN
CLASS="STRUCTNAME"
>SDL_JoyAxisEvent</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_JOYAXISMOTION</TT
> is reported.</P
><P
>A <TT
CLASS="LITERAL"
>SDL_JOYAXISMOTION</TT
> event occurs when ever a user moves an axis 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
>axis</I
></TT
> is the index of the axis (for a more detailed explaination see the <A
HREF="joystick.html"
>Joystick section</A
>). <TT
CLASS="STRUCTFIELD"
><I
>value</I
></TT
> is the current position of the axis.</P
></DIV
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CLASS="REFSECT1"
><A
NAME="AEN4244"
></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="sdljoystickgetaxis.html"
><TT
CLASS="FUNCTION"
>SDL_JoystickGetAxis</TT
></A
></P
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