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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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-1:000000000000 0:74212992fb08
1 <HTML
2 ><HEAD
3 ><TITLE
4 >SDL_WasInit</TITLE
5 ><META
6 NAME="GENERATOR"
7 CONTENT="Modular DocBook HTML Stylesheet Version 1.61
8 "><LINK
9 REL="HOME"
10 TITLE="SDL Library Documentation"
11 HREF="index.html"><LINK
12 REL="UP"
13 TITLE="General"
14 HREF="general.html"><LINK
15 REL="PREVIOUS"
16 TITLE="SDL_Quit"
17 HREF="sdlquit.html"><LINK
18 REL="NEXT"
19 TITLE="Video"
20 HREF="video.html"></HEAD
21 ><BODY
22 CLASS="REFENTRY"
23 BGCOLOR="#FFF8DC"
24 TEXT="#000000"
25 LINK="#0000ee"
26 VLINK="#551a8b"
27 ALINK="#ff0000"
28 ><DIV
29 CLASS="NAVHEADER"
30 ><TABLE
31 WIDTH="100%"
32 BORDER="0"
33 CELLPADDING="0"
34 CELLSPACING="0"
35 ><TR
36 ><TH
37 COLSPAN="3"
38 ALIGN="center"
39 >SDL Library Documentation</TH
40 ></TR
41 ><TR
42 ><TD
43 WIDTH="10%"
44 ALIGN="left"
45 VALIGN="bottom"
46 ><A
47 HREF="sdlquit.html"
48 >Prev</A
49 ></TD
50 ><TD
51 WIDTH="80%"
52 ALIGN="center"
53 VALIGN="bottom"
54 ></TD
55 ><TD
56 WIDTH="10%"
57 ALIGN="right"
58 VALIGN="bottom"
59 ><A
60 HREF="video.html"
61 >Next</A
62 ></TD
63 ></TR
64 ></TABLE
65 ><HR
66 ALIGN="LEFT"
67 WIDTH="100%"></DIV
68 ><H1
69 ><A
70 NAME="SDLWASINIT"
71 >SDL_WasInit</A
72 ></H1
73 ><DIV
74 CLASS="REFNAMEDIV"
75 ><A
76 NAME="AEN578"
77 ></A
78 ><H2
79 >Name</H2
80 >SDL_WasInit&nbsp;--&nbsp;Check which subsystems are initialized</DIV
81 ><DIV
82 CLASS="REFSYNOPSISDIV"
83 ><A
84 NAME="AEN581"
85 ></A
86 ><H2
87 >Synopsis</H2
88 ><DIV
89 CLASS="FUNCSYNOPSIS"
90 ><A
91 NAME="AEN582"
92 ></A
93 ><P
94 ></P
95 ><PRE
96 CLASS="FUNCSYNOPSISINFO"
97 >#include "SDL.h"</PRE
98 ><P
99 ><CODE
100 ><CODE
101 CLASS="FUNCDEF"
102 >Uint32 <B
103 CLASS="FSFUNC"
104 >SDL_WasInit</B
105 ></CODE
106 >(Uint32 flags);</CODE
107 ></P
108 ><P
109 ></P
110 ></DIV
111 ></DIV
112 ><DIV
113 CLASS="REFSECT1"
114 ><A
115 NAME="AEN588"
116 ></A
117 ><H2
118 >Description</H2
119 ><P
120 ><TT
121 CLASS="FUNCTION"
122 >SDL_WasInit</TT
123 > allows you to see which SDL subsytems have been <A
124 HREF="sdlinit.html"
125 >initialized</A
126 >. <TT
127 CLASS="PARAMETER"
128 ><I
129 >flags</I
130 ></TT
131 > is a bitwise OR'd combination of the subsystems you wish to check (see <A
132 HREF="sdlinit.html"
133 ><TT
134 CLASS="FUNCTION"
135 >SDL_Init</TT
136 ></A
137 > for a list of subsystem flags).</P
138 ></DIV
139 ><DIV
140 CLASS="REFSECT1"
141 ><A
142 NAME="AEN596"
143 ></A
144 ><H2
145 >Return Value</H2
146 ><P
147 ><TT
148 CLASS="FUNCTION"
149 >SDL_WasInit</TT
150 > returns a bitwised OR'd combination of the initialized subsystems.</P
151 ></DIV
152 ><DIV
153 CLASS="REFSECT1"
154 ><A
155 NAME="AEN600"
156 ></A
157 ><H2
158 >Examples</H2
159 ><PRE
160 CLASS="PROGRAMLISTING"
161 >&#13;/* Here are several ways you can use SDL_WasInit() */
162
163 /* Get init data on all the subsystems */
164 Uint32 subsystem_init;
165
166 subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING);
167
168 if(subsystem_init&#38;SDL_INIT_VIDEO)
169 printf("Video is initialized.\n");
170 else
171 printf("Video is not initialized.\n");
172
173
174
175 /* Just check for one specfic subsystem */
176
177 if(SDL_WasInit(SDL_INIT_VIDEO)!=0)
178 printf("Video is initialized.\n");
179 else
180 printf("Video is not initialized.\n");
181
182
183
184
185 /* Check for two subsystems */
186
187 Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO;
188
189 if(SDL_WasInit(subsystem_mask)==subsystem_mask)
190 printf("Video and Audio initialized.\n");
191 else
192 printf("Video and Audio not initialized.\n");&#13;</PRE
193 ></DIV
194 ><DIV
195 CLASS="REFSECT1"
196 ><A
197 NAME="AEN603"
198 ></A
199 ><H2
200 >See Also</H2
201 ><P
202 ><A
203 HREF="sdlinit.html"
204 ><TT
205 CLASS="FUNCTION"
206 >SDL_Init</TT
207 ></A
208 >,
209 <A
210 HREF="sdlinitsubsystem.html"
211 ><TT
212 CLASS="FUNCTION"
213 >SDL_Subsystem</TT
214 ></A
215 ></P
216 ></DIV
217 ><DIV
218 CLASS="NAVFOOTER"
219 ><HR
220 ALIGN="LEFT"
221 WIDTH="100%"><TABLE
222 WIDTH="100%"
223 BORDER="0"
224 CELLPADDING="0"
225 CELLSPACING="0"
226 ><TR
227 ><TD
228 WIDTH="33%"
229 ALIGN="left"
230 VALIGN="top"
231 ><A
232 HREF="sdlquit.html"
233 >Prev</A
234 ></TD
235 ><TD
236 WIDTH="34%"
237 ALIGN="center"
238 VALIGN="top"
239 ><A
240 HREF="index.html"
241 >Home</A
242 ></TD
243 ><TD
244 WIDTH="33%"
245 ALIGN="right"
246 VALIGN="top"
247 ><A
248 HREF="video.html"
249 >Next</A
250 ></TD
251 ></TR
252 ><TR
253 ><TD
254 WIDTH="33%"
255 ALIGN="left"
256 VALIGN="top"
257 >SDL_Quit</TD
258 ><TD
259 WIDTH="34%"
260 ALIGN="center"
261 VALIGN="top"
262 ><A
263 HREF="general.html"
264 >Up</A
265 ></TD
266 ><TD
267 WIDTH="33%"
268 ALIGN="right"
269 VALIGN="top"
270 >Video</TD
271 ></TR
272 ></TABLE
273 ></DIV
274 ></BODY
275 ></HTML
276 >