Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_SemWait.3 @ 4171:3012f1c37361 SDL-1.2
Fixed bug #619
Description From Tim Angus 2008-08-31 03:38:36 (-) [reply]
When pressing "system keys" e.g. ALT+F4 etc., the default for the windib driver
is to ignore them completely, whereas with the directx driver they're handled
(badly as it turns out).
As the windib driver is the default, I assume its behaviour is considered
correct, so the following patch makes the directx driver the same in this
regard.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 13 Apr 2009 08:44:48 +0000 |
parents | 4e3b250c950e |
children | 1238da4a7112 |
rev | line source |
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181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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1 .TH "SDL_SemWait" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
4107
4e3b250c950e
Erik Heckers fixed bug #493
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
3 SDL_SemWait \- Lock a semaphore and suspend the thread if the semaphore value is zero\&. |
0 | 4 .SH "SYNOPSIS" |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 #include "SDL_thread\&.h" | |
8 .sp | |
9 \fBint \fBSDL_SemWait\fP\fR(\fBSDL_sem *sem\fR); | |
10 .SH "DESCRIPTION" | |
11 .PP | |
12 \fBSDL_SemWait()\fP suspends the calling thread until either the semaphore pointed to by \fBsem\fR has a positive value, the call is interrupted by a signal or error\&. If the call is successful it will atomically decrement the semaphore value\&. | |
13 .PP | |
14 After \fBSDL_SemWait()\fP is successful, the semaphore can be released and its count atomically incremented by a successful call to \fISDL_SemPost\fR\&. | |
15 .SH "RETURN VALUE" | |
16 .PP | |
17 Returns \fB0\fR if successful or \fB-1\fR if there was an error (leaving the semaphore unchanged)\&. | |
18 .SH "EXAMPLES" | |
19 .PP | |
20 .PP | |
21 .nf | |
22 \f(CWif (SDL_SemWait(my_sem) == -1) { | |
23 return WAIT_FAILED; | |
24 } | |
25 | |
26 \&.\&.\&. | |
27 | |
28 SDL_SemPost(my_sem);\fR | |
29 .fi | |
30 .PP | |
31 .SH "SEE ALSO" | |
32 .PP | |
33 \fI\fBSDL_CreateSemaphore\fP\fR, \fI\fBSDL_DestroySemaphore\fP\fR, \fI\fBSDL_SemTryWait\fP\fR, \fI\fBSDL_SemWaitTimeout\fP\fR, \fI\fBSDL_SemPost\fP\fR, \fI\fBSDL_SemValue\fP\fR | |
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
34 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00 |