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The core pointer is comprised of merging the inputs of all mice. If there are other mice, they should show up in the device list, and we want to report events from those devices instead of the core events. However, if XInput isn't supported or we can't find other mice in the device list, we'll add the core pointer and interpret normal mouse events.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Jan 2009 18:29:20 +0000
parents 355632dca928
children
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>SDL_GL_GetAttribute</TITLE
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><H1
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>SDL_GL_GetAttribute</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN2708"
></A
><H2
>Name</H2
>SDL_GL_GetAttribute&nbsp;--&nbsp;Get the value of a special SDL/OpenGL attribute</DIV
><DIV
CLASS="REFSYNOPSISDIV"
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><H2
>Synopsis</H2
><DIV
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><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_GL_GetAttribute</B
></CODE
>(SDLGLattr attr, int *value);</CODE
></P
><P
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><H2
>Description</H2
><P
>Places the value of the SDL/OpenGL <A
HREF="sdlglattr.html"
>attribute</A
> <TT
CLASS="PARAMETER"
><I
>attr</I
></TT
> into <TT
CLASS="PARAMETER"
><I
>value</I
></TT
>. This is useful after a call to <A
HREF="sdlsetvideomode.html"
><TT
CLASS="FUNCTION"
>SDL_SetVideoMode</TT
></A
> to check whether your attributes have been <A
HREF="sdlglsetattribute.html"
>set</A
> as you expected.</P
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><A
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><H2
>Return Value</H2
><P
>Returns <SPAN
CLASS="RETURNVALUE"
>0</SPAN
> on success, or <SPAN
CLASS="RETURNVALUE"
>-1</SPAN
> on an error.</P
></DIV
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></A
><H2
>See Also</H2
><P
><A
HREF="sdlglsetattribute.html"
><TT
CLASS="FUNCTION"
>SDL_GL_SetAttribute</TT
></A
>,
<A
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>GL Attributes</A
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