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  39. >SDL Library Documentation</TH
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  68. ><H1
  69. ><A
  70. NAME="SDLVIDEOMODEOK"
  71. >SDL_VideoModeOK</A
  72. ></H1
  73. ><DIV
  74. CLASS="REFNAMEDIV"
  75. ><A
  76. NAME="AEN797"
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  78. ><H2
  79. >Name</H2
  80. >SDL_VideoModeOK&nbsp;--&nbsp;Check to see if a particular video mode is supported.</DIV
  81. ><DIV
  82. CLASS="REFSYNOPSISDIV"
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  84. NAME="AEN800"
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  86. ><H2
  87. >Synopsis</H2
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  89. CLASS="FUNCSYNOPSIS"
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  91. NAME="AEN801"
  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. >int <B
  103. CLASS="FSFUNC"
  104. >SDL_VideoModeOK</B
  105. ></CODE
  106. >(int width, int height, int bpp, Uint32 flags);</CODE
  107. ></P
  108. ><P
  109. ></P
  110. ></DIV
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  112. ><DIV
  113. CLASS="REFSECT1"
  114. ><A
  115. NAME="AEN807"
  116. ></A
  117. ><H2
  118. >Description</H2
  119. ><P
  120. ><TT
  121. CLASS="FUNCTION"
  122. >SDL_VideoModeOK</TT
  123. > returns <SPAN
  124. CLASS="RETURNVALUE"
  125. >0</SPAN
  126. >
  127. if the requested mode is not supported under any bit depth, or returns the
  128. bits-per-pixel of the closest available mode with the given width, height and requested <A
  129. HREF="sdlsurface.html"
  130. >surface</A
  131. > flags (see <A
  132. HREF="sdlsetvideomode.html"
  133. ><TT
  134. CLASS="FUNCTION"
  135. >SDL_SetVideoMode</TT
  136. ></A
  137. >).</P
  138. ><P
  139. >The bits-per-pixel value returned is only a suggested mode. You can usually request and bpp you want when <A
  140. HREF="sdlsetvideomode.html"
  141. >setting</A
  142. >  the video mode and SDL will emulate that color depth with a shadow video surface.</P
  143. ><P
  144. >The arguments to <TT
  145. CLASS="FUNCTION"
  146. >SDL_VideoModeOK</TT
  147. > are the same ones you
  148. would pass to <A
  149. HREF="sdlsetvideomode.html"
  150. >SDL_SetVideoMode</A
  151. ></P
  152. ></DIV
  153. ><DIV
  154. CLASS="REFSECT1"
  155. ><A
  156. NAME="AEN820"
  157. ></A
  158. ><H2
  159. >Example</H2
  160. ><PRE
  161. CLASS="PROGRAMLISTING"
  162. >SDL_Surface *screen;
  163. Uint32 bpp;
  164. .
  165. .
  166. .
  167. printf("Checking mode 640x480@16bpp.\n");
  168. bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE);
  169.  
  170. if(!bpp){
  171.   printf("Mode not available.\n");
  172.   exit(-1);
  173. }
  174.  
  175. printf("SDL Recommends 640x480@%dbpp.\n", bpp);
  176. screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE);
  177. .
  178. .</PRE
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  185. ><H2
  186. >See Also</H2
  187. ><P
  188. ><A
  189. HREF="sdlsetvideomode.html"
  190. ><TT
  191. CLASS="FUNCTION"
  192. >SDL_SetVideoMode</TT
  193. ></A
  194. >,
  195. <A
  196. HREF="sdlgetvideoinfo.html"
  197. ><TT
  198. CLASS="FUNCTION"
  199. >SDL_GetVideoInfo</TT
  200. ></A
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