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sdlvideomodeok.html
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<HTML
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><TITLE
>SDL_VideoModeOK</TITLE
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"><LINK
REL="HOME"
TITLE="SDL Library Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="Video"
HREF="video.html"><LINK
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TITLE="SDL_ListModes"
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TITLE="SDL_SetVideoMode"
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><TR
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>SDL Library Documentation</TH
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>Prev</A
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>Next</A
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><H1
><A
NAME="SDLVIDEOMODEOK"
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>SDL_VideoModeOK</H1
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><DIV
CLASS="REFNAMEDIV"
><A
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NAME="AEN1202"
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></A
><H2
>Name</H2
>SDL_VideoModeOK -- Check to see if a particular video mode is supported.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
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NAME="AEN1205"
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></A
><H2
>Synopsis</H2
><DIV
CLASS="FUNCSYNOPSIS"
><A
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NAME="AEN1206"
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></A
><P
></P
><PRE
CLASS="FUNCSYNOPSISINFO"
>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="FSFUNC"
>SDL_VideoModeOK</B
></CODE
>(int width, int height, int bpp, Uint32 flags);</CODE
></P
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
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NAME="AEN1212"
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></A
><H2
>Description</H2
><P
><TT
CLASS="FUNCTION"
>SDL_VideoModeOK</TT
> returns <SPAN
CLASS="RETURNVALUE"
>0</SPAN
>
if the requested mode is not supported under any bit depth, or returns the
bits-per-pixel of the closest available mode with the given width, height and requested <A
HREF="sdlsurface.html"
>surface</A
> flags (see <A
HREF="sdlsetvideomode.html"
><TT
CLASS="FUNCTION"
>SDL_SetVideoMode</TT
></A
>).</P
><P
>The bits-per-pixel value returned is only a suggested mode. You can usually request and bpp you want when <A
HREF="sdlsetvideomode.html"
>setting</A
> the video mode and SDL will emulate that color depth with a shadow video surface.</P
><P
>The arguments to <TT
CLASS="FUNCTION"
>SDL_VideoModeOK</TT
> are the same ones you
would pass to <A
HREF="sdlsetvideomode.html"
>SDL_SetVideoMode</A
></P
></DIV
><DIV
CLASS="REFSECT1"
><A
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></A
><H2
>Example</H2
><PRE
CLASS="PROGRAMLISTING"
>SDL_Surface *screen;
Uint32 bpp;
.
.
.
printf("Checking mode 640x480@16bpp.\n");
bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE);
if(!bpp){
printf("Mode not available.\n");
exit(-1);
}
printf("SDL Recommends 640x480@%dbpp.\n", bpp);
screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE);
.
.</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
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></A
><H2
>See Also</H2
><P
><A
HREF="sdlsetvideomode.html"
><TT
CLASS="FUNCTION"
>SDL_SetVideoMode</TT
></A
>,
<A
HREF="sdlgetvideoinfo.html"
><TT
CLASS="FUNCTION"
>SDL_GetVideoInfo</TT
></A
></P
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>Prev</A
></TD
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>Home</A
></TD
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HREF="sdlsetvideomode.html"
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>Next</A
></TD
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><TR
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>SDL_ListModes</TD
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>Up</A
></TD
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WIDTH="33%"
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>SDL_SetVideoMode</TD
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>