[sdl_omap.git] / docs / html / sdlwasinit.html

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>SDL_WasInit</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN617"
></A
><H2
>Name</H2
>SDL_WasInit&nbsp;--&nbsp;Check which subsystems are initialized</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN620"
></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
NAME="AEN621"
></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>Uint32 <B
CLASS="FSFUNC"
>SDL_WasInit</B
></CODE
>(Uint32 flags);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN627"
></A
><H2
>Description</H2
><P
><TT
CLASS="FUNCTION"
>SDL_WasInit</TT
> allows you to see which SDL subsytems have been <A
HREF="sdlinit.html"
>initialized</A
>. <TT
CLASS="PARAMETER"
><I
>flags</I
></TT
> is a bitwise OR'd combination of the subsystems you wish to check (see <A
HREF="sdlinit.html"
><TT
CLASS="FUNCTION"
>SDL_Init</TT
></A
> for a list of subsystem flags).</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN635"
></A
><H2
>Return Value</H2
><P
><TT
CLASS="FUNCTION"
>SDL_WasInit</TT
> returns a bitwised OR'd combination of the initialized subsystems.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN639"
></A
><H2
>Examples</H2
><PRE
CLASS="PROGRAMLISTING"
>&#13;/* Here are several ways you can use SDL_WasInit() */

/* Get init data on all the subsystems */
Uint32 subsystem_init;

subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING);

if(subsystem_init&#38;SDL_INIT_VIDEO)
  printf("Video is initialized.\n");
else
  printf("Video is not initialized.\n");


/* Just check for one specfic subsystem */

if(SDL_WasInit(SDL_INIT_VIDEO)!=0)
  printf("Video is initialized.\n");
else
  printf("Video is not initialized.\n");


/* Check for two subsystems */

Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO;

if(SDL_WasInit(subsystem_mask)==subsystem_mask)
  printf("Video and Audio initialized.\n");
else
  printf("Video and Audio not initialized.\n");&#13;</PRE
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><H2
>See Also</H2
><P
><A
HREF="sdlinit.html"
><TT
CLASS="FUNCTION"
>SDL_Init</TT
></A
>,
<A
HREF="sdlinitsubsystem.html"
><TT
CLASS="FUNCTION"
>SDL_Subsystem</TT
></A
></P
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e14743d1	1	<HTML
	2	><HEAD
	3	><TITLE
	4	>SDL_WasInit</TITLE
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	6	NAME="GENERATOR"
	7	CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
	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"
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	18	REL="NEXT"
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	23	BGCOLOR="#FFF8DC"
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	39	ALIGN="center"
	40	>SDL Library Documentation</TH
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	44	WIDTH="10%"
	45	ALIGN="left"
	46	VALIGN="bottom"
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	50	>Prev</A
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	64	>Next</A
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68	><HR
69	ALIGN="LEFT"
70	WIDTH="100%"></DIV
71	><H1
72	><A
73	NAME="SDLWASINIT"
74	></A
75	>SDL_WasInit</H1
76	><DIV
77	CLASS="REFNAMEDIV"
78	><A
79	NAME="AEN617"
80	></A
81	><H2
82	>Name</H2
83	>SDL_WasInit -- Check which subsystems are initialized</DIV
84	><DIV
85	CLASS="REFSYNOPSISDIV"
86	><A
87	NAME="AEN620"
88	></A
89	><H2
90	>Synopsis</H2
91	><DIV
92	CLASS="FUNCSYNOPSIS"
93	><A
94	NAME="AEN621"
95	></A
96	><P
97	></P
98	><PRE
99	CLASS="FUNCSYNOPSISINFO"
100	>#include "SDL.h"</PRE
101	><P
102	><CODE
103	><CODE
104	CLASS="FUNCDEF"
105	>Uint32 <B
106	CLASS="FSFUNC"
107	>SDL_WasInit</B
108	></CODE
109	>(Uint32 flags);</CODE
110	></P
111	><P
112	></P
113	></DIV
114	></DIV
115	><DIV
116	CLASS="REFSECT1"
117	><A
118	NAME="AEN627"
119	></A
120	><H2
121	>Description</H2
122	><P
123	><TT
124	CLASS="FUNCTION"
125	>SDL_WasInit</TT
126	> allows you to see which SDL subsytems have been <A
127	HREF="sdlinit.html"
128	>initialized</A
129	>. <TT
130	CLASS="PARAMETER"
131	><I
132	>flags</I
133	></TT
134	> is a bitwise OR'd combination of the subsystems you wish to check (see <A
135	HREF="sdlinit.html"
136	><TT
137	CLASS="FUNCTION"
138	>SDL_Init</TT
139	></A
140	> for a list of subsystem flags).</P
141	></DIV
142	><DIV
143	CLASS="REFSECT1"
144	><A
145	NAME="AEN635"
146	></A
147	><H2
148	>Return Value</H2
149	><P
150	><TT
151	CLASS="FUNCTION"
152	>SDL_WasInit</TT
153	> returns a bitwised OR'd combination of the initialized subsystems.</P
154	></DIV
155	><DIV
156	CLASS="REFSECT1"
157	><A
158	NAME="AEN639"
159	></A
160	><H2
161	>Examples</H2
162	><PRE
163	CLASS="PROGRAMLISTING"
164	> /* Here are several ways you can use SDL_WasInit() */
165
166	/* Get init data on all the subsystems */
167	Uint32 subsystem_init;
168
169	subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING);
170
171	if(subsystem_init&SDL_INIT_VIDEO)
172	printf("Video is initialized.\n");
173	else
174	printf("Video is not initialized.\n");
175
176
177
178	/* Just check for one specfic subsystem */
179
180	if(SDL_WasInit(SDL_INIT_VIDEO)!=0)
181	printf("Video is initialized.\n");
182	else
183	printf("Video is not initialized.\n");
184
185
186
187
188	/* Check for two subsystems */
189
190	Uint32 subsystem_mask=SDL_INIT_VIDEO\|SDL_INIT_AUDIO;
191
192	if(SDL_WasInit(subsystem_mask)==subsystem_mask)
193	printf("Video and Audio initialized.\n");
194	else
195	printf("Video and Audio not initialized.\n"); </PRE
196	></DIV
197	><DIV
198	CLASS="REFSECT1"
199	><A
200	NAME="AEN642"
201	></A
202	><H2
203	>See Also</H2
204	><P
205	><A
206	HREF="sdlinit.html"
207	><TT
208	CLASS="FUNCTION"
209	>SDL_Init</TT
210	></A
211	>,
212	<A
213	HREF="sdlinitsubsystem.html"
214	><TT
215	CLASS="FUNCTION"
216	>SDL_Subsystem</TT
217	></A
218	></P
219	></DIV
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221	CLASS="NAVFOOTER"
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223	ALIGN="LEFT"
224	WIDTH="100%"><TABLE
225	SUMMARY="Footer navigation table"
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234	VALIGN="top"
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236	HREF="sdlquit.html"
237	ACCESSKEY="P"
238	>Prev</A
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284	>