Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_PollEvent.3 @ 865:92615154bb68
Date: Sun, 29 Feb 2004 15:14:22 +0200
From: Martin_Storsj
Subject: Dynamic loading of ALSA
I recently discovered that SDL can dynamically load ESD and aRts, and
made a patch which adds this same functionality to ALSA.
The update for configure.in isn't too good (it should e.g. look for
libasound.so in other directories than /usr/lib), because I'm not too
good at shellscripting and autoconf.
The reason for using dlfcn.h and dlopen instead of SDL_LoadLibrary and
SDL_LoadFunction is that libasound uses versioned symbols, and it is
necessary to load the correct version using dlvsym. This isn't probably
any real portability issue, because ALSA is linux-only.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 02 Mar 2004 12:49:16 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_PollEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_PollEvent\- Polls for currently pending events\&. | |
| 4 .SH "SYNOPSIS" | |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBint \fBSDL_PollEvent\fP\fR(\fBSDL_Event *event\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 Polls for currently pending events, and returns \fB1\fR if there are any pending events, or \fB0\fR if there are none available\&. | |
| 12 .PP | |
| 13 If \fBevent\fR is not \fBNULL\fP, the next event is removed from the queue and stored in that area\&. | |
| 14 .SH "EXAMPLES" | |
| 15 .PP | |
| 16 .PP | |
| 17 .nf | |
| 18 \f(CWSDL_Event event; /* Event structure */ | |
| 19 | |
| 20 \&. | |
| 21 \&. | |
| 22 \&. | |
| 23 /* Check for events */ | |
| 24 while(SDL_PollEvent(&event)){ /* Loop until there are no events left on the queue */ | |
| 25 switch(event\&.type){ /* Process the appropiate event type */ | |
| 26 case SDL_KEYDOWN: /* Handle a KEYDOWN event */ | |
| 27 printf("Oh! Key press | |
| 28 "); | |
| 29 break; | |
| 30 case SDL_MOUSEMOTION: | |
| 31 \&. | |
| 32 \&. | |
| 33 \&. | |
| 34 default: /* Report an unhandled event */ | |
| 35 printf("I don\&'t know what this event is! | |
| 36 "); | |
| 37 } | |
| 38 }\fR | |
| 39 .fi | |
| 40 .PP | |
| 41 .SH "SEE ALSO" | |
| 42 .PP | |
| 43 \fI\fBSDL_Event\fR\fR, \fI\fBSDL_WaitEvent\fP\fR, \fI\fBSDL_PeepEvents\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
44 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59 |