Home | History | Annotate | Download | only in html
      1 <HTML
      2 ><HEAD
      3 ><TITLE
      4 >SDL_WasInit</TITLE
      5 ><META
      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"
     17 HREF="sdlquit.html"><LINK
     18 REL="NEXT"
     19 TITLE="SDL_GetError"
     20 HREF="sdlgeterror.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 SUMMARY="Header navigation table"
     32 WIDTH="100%"
     33 BORDER="0"
     34 CELLPADDING="0"
     35 CELLSPACING="0"
     36 ><TR
     37 ><TH
     38 COLSPAN="3"
     39 ALIGN="center"
     40 >SDL Library Documentation</TH
     41 ></TR
     42 ><TR
     43 ><TD
     44 WIDTH="10%"
     45 ALIGN="left"
     46 VALIGN="bottom"
     47 ><A
     48 HREF="sdlquit.html"
     49 ACCESSKEY="P"
     50 >Prev</A
     51 ></TD
     52 ><TD
     53 WIDTH="80%"
     54 ALIGN="center"
     55 VALIGN="bottom"
     56 ></TD
     57 ><TD
     58 WIDTH="10%"
     59 ALIGN="right"
     60 VALIGN="bottom"
     61 ><A
     62 HREF="sdlgeterror.html"
     63 ACCESSKEY="N"
     64 >Next</A
     65 ></TD
     66 ></TR
     67 ></TABLE
     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&nbsp;--&nbsp;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 >&#13;/* 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&#38;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");&#13;</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
    220 ><DIV
    221 CLASS="NAVFOOTER"
    222 ><HR
    223 ALIGN="LEFT"
    224 WIDTH="100%"><TABLE
    225 SUMMARY="Footer navigation table"
    226 WIDTH="100%"
    227 BORDER="0"
    228 CELLPADDING="0"
    229 CELLSPACING="0"
    230 ><TR
    231 ><TD
    232 WIDTH="33%"
    233 ALIGN="left"
    234 VALIGN="top"
    235 ><A
    236 HREF="sdlquit.html"
    237 ACCESSKEY="P"
    238 >Prev</A
    239 ></TD
    240 ><TD
    241 WIDTH="34%"
    242 ALIGN="center"
    243 VALIGN="top"
    244 ><A
    245 HREF="index.html"
    246 ACCESSKEY="H"
    247 >Home</A
    248 ></TD
    249 ><TD
    250 WIDTH="33%"
    251 ALIGN="right"
    252 VALIGN="top"
    253 ><A
    254 HREF="sdlgeterror.html"
    255 ACCESSKEY="N"
    256 >Next</A
    257 ></TD
    258 ></TR
    259 ><TR
    260 ><TD
    261 WIDTH="33%"
    262 ALIGN="left"
    263 VALIGN="top"
    264 >SDL_Quit</TD
    265 ><TD
    266 WIDTH="34%"
    267 ALIGN="center"
    268 VALIGN="top"
    269 ><A
    270 HREF="general.html"
    271 ACCESSKEY="U"
    272 >Up</A
    273 ></TD
    274 ><TD
    275 WIDTH="33%"
    276 ALIGN="right"
    277 VALIGN="top"
    278 >SDL_GetError</TD
    279 ></TR
    280 ></TABLE
    281 ></DIV
    282 ></BODY
    283 ></HTML
    284 >