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comparison docs/man3/SDL_WasInit.3 @ 0:74212992fb08

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Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
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children 55f1f1b3e27d
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1 .TH "SDL_WasInit" "3" "Mon 12 Mar 2001, 01:03" "SDL" "SDL API Reference"
2 .SH "NAME"
3 SDL_WasInit\- Check which subsystems are initialized
4 .SH "SYNOPSIS"
5 .PP
6 \fB#include "SDL\&.h"
7 .sp
8 \fBUint32 \fBSDL_WasInit\fP\fR(\fBUint32 flags\fR);
9 .SH "DESCRIPTION"
10 .PP
11 \fBSDL_WasInit\fP allows you to see which SDL subsytems have been \fIinitialized\fR\&. \fBflags\fR is a bitwise OR\&'d combination of the subsystems you wish to check (see \fI\fBSDL_Init\fP\fR for a list of subsystem flags)\&.
12 .SH "RETURN VALUE"
13 .PP
14 \fBSDL_WasInit\fP returns a bitwised OR\&'d combination of the initialized subsystems\&.
15 .SH "EXAMPLES"
16 .PP
17 .nf
18 \f(CW
19 /* Here are several ways you can use SDL_WasInit() */
20
21 /* Get init data on all the subsystems */
22 Uint32 subsystem_init;
23
24 subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING);
25
26 if(subsystem_init&SDL_INIT_VIDEO)
27 printf("Video is initialized\&.
28 ");
29 else
30 printf("Video is not initialized\&.
31 ");
32
33
34
35 /* Just check for one specfic subsystem */
36
37 if(SDL_WasInit(SDL_INIT_VIDEO)!=0)
38 printf("Video is initialized\&.
39 ");
40 else
41 printf("Video is not initialized\&.
42 ");
43
44
45
46
47 /* Check for two subsystems */
48
49 Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO;
50
51 if(SDL_WasInit(subsystem_mask)==subsystem_mask)
52 printf("Video and Audio initialized\&.
53 ");
54 else
55 printf("Video and Audio not initialized\&.
56 ");
57 \fR
58 .fi
59 .PP
60 .SH "SEE ALSO"
61 .PP
62 \fI\fBSDL_Init\fP\fR, \fI\fBSDL_Subsystem\fP\fR
63 ...\" created by instant / docbook-to-man, Mon 12 Mar 2001, 01:03