view docs/html/sdlgetkeystate.html @ 2351:d2a519d2cc57 gsoc2008_iphone

SDL_uikitopenglview is an OpenGL ES View class based on the one found in Apple's OpenGL ES based application template. It's created from SDL_uikitopengles.m, normally.
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Thu, 17 Jul 2008 22:35:59 +0000
parents 355632dca928
children
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>SDL_GetKeyState</H1
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><H2
>Name</H2
>SDL_GetKeyState&nbsp;--&nbsp;Get a snapshot of the current keyboard state</DIV
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><PRE
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>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>Uint8 *<B
CLASS="FSFUNC"
>SDL_GetKeyState</B
></CODE
>(int *numkeys);</CODE
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>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
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>Use <A
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><TT
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>SDL_PumpEvents</TT
></A
> to update the state array.</P
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>Example</H2
><P
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>Uint8 *keystate = SDL_GetKeyState(NULL);
if ( keystate[SDLK_RETURN] ) printf("Return Key Pressed.\n");</PRE
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><A
HREF="sdlkey.html"
><TT
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>SDL Key Symbols</TT
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>,
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>SDL_PumpEvents</TT
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