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annotate docs/man3/SDL_PollEvent.3 @ 481:c96e2137f9eb

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Date: Sat, 31 Aug 2002 15:42:45 +0200 From: Alexandre Courbot Subject: [SDL] Qtopia port fixes/improvments -Whenever the screen is rotated, the pad is rotated as well, -Fixed a mouse bug: when tapping on the screen, the click event was often sent at the previous position of the stylus (resulting in strange behavior in Scummvm for instance) -Added the SDL_QT_INVERT_ROTATION environment variable which, when set, rotates the screen (and the mouse, and the pad) the other way. This can be useful for left-handed people.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 01 Sep 2002 00:37:24 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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1 .TH "SDL_PollEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference"
0
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2 .SH "NAME"
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3 SDL_PollEvent\- Polls for currently pending events\&.
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4 .SH "SYNOPSIS"
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5 .PP
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6 \fB#include "SDL\&.h"
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7 .sp
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8 \fBint \fBSDL_PollEvent\fP\fR(\fBSDL_Event *event\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Polls for currently pending events, and returns \fB1\fR if there are any pending events, or \fB0\fR if there are none available\&.
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12 .PP
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13 If \fBevent\fR is not \fBNULL\fP, the next event is removed from the queue and stored in that area\&.
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14 .SH "EXAMPLES"
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15 .PP
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16 .PP
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17 .nf
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18 \f(CWSDL_Event event; /* Event structure */
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19
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20 \&.
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21 \&.
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22 \&.
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23 /* Check for events */
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24 while(SDL_PollEvent(&event)){ /* Loop until there are no events left on the queue */
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25 switch(event\&.type){ /* Process the appropiate event type */
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26 case SDL_KEYDOWN: /* Handle a KEYDOWN event */
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27 printf("Oh! Key press
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28 ");
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29 break;
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30 case SDL_MOUSEMOTION:
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31 \&.
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32 \&.
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33 \&.
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34 default: /* Report an unhandled event */
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35 printf("I don\&'t know what this event is!
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36 ");
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37 }
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38 }\fR
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39 .fi
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40 .PP
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41 .SH "SEE ALSO"
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42 .PP
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43 \fI\fBSDL_Event\fR\fR, \fI\fBSDL_WaitEvent\fP\fR, \fI\fBSDL_PeepEvents\fP\fR
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44 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59