view docs/html/sdlgetkeystate.html @ 1143:71a2648acc75

Replaced Mac OS X's C++ cdrom code with almost-direct translation to C. Sam requested this effort on the mailing list, apparently because of binary compatibility issues between 10.4 and earlier systems (or gcc4 and earlier compilers?). Works fine with SDL12/test/testcdrom.c, with this command line: ./testcdrom -status -list -play -sleep 5000 -pause -sleep 3000 -resume \ -sleep 5000 -stop -sleep 3000 -play -sleep 3000 -stop \ -sleep 3000 -eject Unix Makefiles work, XCode project still need updating for new filenames.
author Ryan C. Gordon <icculus@icculus.org>
date Thu, 22 Sep 2005 08:48:16 +0000
parents 355632dca928
children
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>SDL_GetKeyState</TITLE
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><H1
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>SDL_GetKeyState</H1
><DIV
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><H2
>Name</H2
>SDL_GetKeyState&nbsp;--&nbsp;Get a snapshot of the current keyboard state</DIV
><DIV
CLASS="REFSYNOPSISDIV"
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><H2
>Synopsis</H2
><DIV
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><P
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><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>Uint8 *<B
CLASS="FSFUNC"
>SDL_GetKeyState</B
></CODE
>(int *numkeys);</CODE
></P
><P
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><H2
>Description</H2
><P
>Gets a snapshot of the current keyboard state. The current state is return as a pointer to an array, the size of this array is stored in <TT
CLASS="PARAMETER"
><I
>numkeys</I
></TT
>. The array is indexed by the <A
HREF="sdlkey.html"
><TT
CLASS="LITERAL"
>SDLK_*</TT
></A
> symbols. A value of 1 means the key is pressed and a value of 0 means its not. The pointer returned is a pointer to an internal SDL array and should not be freed by the caller.</P
><DIV
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><B
>Note: </B
>Use <A
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><TT
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>SDL_PumpEvents</TT
></A
> to update the state array.</P
></BLOCKQUOTE
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><H2
>Example</H2
><P
><PRE
CLASS="PROGRAMLISTING"
>Uint8 *keystate = SDL_GetKeyState(NULL);
if ( keystate[SDLK_RETURN] ) printf("Return Key Pressed.\n");</PRE
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>See Also</H2
><P
><A
HREF="sdlkey.html"
><TT
CLASS="LITERAL"
>SDL Key Symbols</TT
></A
>,
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>SDL_PumpEvents</TT
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