view docs/man3/SDL_PollEvent.3 @ 2042:3908e1f808e1

Fixed bug #292 I might be on crack here. It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and right channels of a stereo stream together, and clamps the new mono channel if it would overflow. Shouldn't it be dividing by 2 to average the two sample points instead of clamping? Otherwise the mono sample point's volume doubles in the conversion. This would also make the conversion faster, as it replaces two branches per sample frame with a bitwise shift. --ryan.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Sep 2006 15:56:36 +0000
parents e5bc29de3f0a
children 546f7c1eb755
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.TH "SDL_PollEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_PollEvent\- Polls for currently pending events\&.
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBint \fBSDL_PollEvent\fP\fR(\fBSDL_Event *event\fR);
.SH "DESCRIPTION"
.PP
Polls for currently pending events, and returns \fB1\fR if there are any pending events, or \fB0\fR if there are none available\&. 
.PP
If \fBevent\fR is not \fBNULL\fP, the next event is removed from the queue and stored in that area\&.
.SH "EXAMPLES"
.PP
.PP
.nf
\f(CWSDL_Event event; /* Event structure */

\&.
\&.
\&.
/* Check for events */
while(SDL_PollEvent(&event)){  /* Loop until there are no events left on the queue */
  switch(event\&.type){  /* Process the appropiate event type */
    case SDL_KEYDOWN:  /* Handle a KEYDOWN event */         
      printf("Oh! Key press
");
      break;
    case SDL_MOUSEMOTION:
      \&.
      \&.
      \&.
    default: /* Report an unhandled event */
      printf("I don\&'t know what this event is!
");
  }
}\fR
.fi
.PP
.SH "SEE ALSO"
.PP
\fI\fBSDL_Event\fR\fR, \fI\fBSDL_WaitEvent\fP\fR, \fI\fBSDL_PeepEvents\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59