view docs/man3/SDL_GetKeyState.3 @ 370:ba72f259bc88

Date: Sat, 18 May 2002 17:40:53 +0300 From: Mike Gorchak <mike@malva.ua> Subject: New QNX patches - Added more error check to avoid SEGFAULTS; - Fixed bug in update function for SDL_HWSURFACE. BTW: update is much faster than before. - Added checks for SDL_HWSURFACE flag, chosen bpp must be equal to desktop bpp for SDL_HWSURFACE. - Fixed overlay bug, no more SEGFAULTS.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 May 2002 19:54:01 +0000
parents e5bc29de3f0a
children 546f7c1eb755
line wrap: on
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.TH "SDL_GetKeyState" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_GetKeyState\- Get a snapshot of the current keyboard state
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBUint8 *\fBSDL_GetKeyState\fP\fR(\fBint *numkeys\fR);
.SH "DESCRIPTION"
.PP
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 \fBnumkeys\fR\&. The array is indexed by the \fI\fBSDLK_*\fP\fR 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\&.
.PP
.RS
\fBNote:  
.PP
Use \fI\fBSDL_PumpEvents\fP\fR to update the state array\&.
.RE
.SH "EXAMPLE"
.PP
.PP
.nf
\f(CWUint8 *keystate = SDL_GetKeyState(NULL);
if ( keystate[SDLK_RETURN] ) printf("Return Key Pressed\&.
");\fR
.fi
.PP
.SH "SEE ALSO"
.PP
\fI\fBSDL Key Symbols\fP\fR, \fI\fBSDL_PumpEvents\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59