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270 lines
3.7 KiB
270 lines
3.7 KiB
<HTML |
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><HEAD |
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><TITLE |
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>SDL_VideoModeOK</TITLE |
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><META |
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NAME="GENERATOR" |
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CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
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REL="HOME" |
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TITLE="SDL Library Documentation" |
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HREF="index.html"><LINK |
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REL="UP" |
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TITLE="Video" |
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HREF="video.html"><LINK |
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REL="PREVIOUS" |
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TITLE="SDL_ListModes" |
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HREF="sdllistmodes.html"><LINK |
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REL="NEXT" |
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TITLE="SDL_SetVideoMode" |
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HREF="sdlsetvideomode.html"></HEAD |
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><TR |
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>SDL Library Documentation</TH |
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><TR |
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WIDTH="10%" |
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><A |
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>Prev</A |
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>Next</A |
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><HR |
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ALIGN="LEFT" |
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WIDTH="100%"></DIV |
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><H1 |
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><A |
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NAME="SDLVIDEOMODEOK" |
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></A |
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>SDL_VideoModeOK</H1 |
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><DIV |
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CLASS="REFNAMEDIV" |
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><A |
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NAME="AEN1202" |
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></A |
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><H2 |
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>Name</H2 |
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>SDL_VideoModeOK -- Check to see if a particular video mode is supported.</DIV |
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><DIV |
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CLASS="REFSYNOPSISDIV" |
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><A |
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NAME="AEN1205" |
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></A |
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><H2 |
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>Synopsis</H2 |
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><DIV |
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CLASS="FUNCSYNOPSIS" |
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><A |
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NAME="AEN1206" |
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></A |
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><P |
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></P |
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><PRE |
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CLASS="FUNCSYNOPSISINFO" |
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>#include "SDL.h"</PRE |
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><P |
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><CODE |
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><CODE |
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CLASS="FUNCDEF" |
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>int <B |
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CLASS="FSFUNC" |
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>SDL_VideoModeOK</B |
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></CODE |
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>(int width, int height, int bpp, Uint32 flags);</CODE |
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></P |
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><P |
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></P |
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></DIV |
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></DIV |
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><DIV |
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CLASS="REFSECT1" |
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><A |
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NAME="AEN1212" |
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></A |
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><H2 |
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>Description</H2 |
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><P |
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><TT |
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CLASS="FUNCTION" |
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>SDL_VideoModeOK</TT |
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> returns <SPAN |
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CLASS="RETURNVALUE" |
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>0</SPAN |
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> |
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if the requested mode is not supported under any bit depth, or returns the |
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bits-per-pixel of the closest available mode with the given width, height and requested <A |
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HREF="sdlsurface.html" |
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>surface</A |
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> flags (see <A |
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HREF="sdlsetvideomode.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_SetVideoMode</TT |
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></A |
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>).</P |
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><P |
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>The bits-per-pixel value returned is only a suggested mode. You can usually request and bpp you want when <A |
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HREF="sdlsetvideomode.html" |
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>setting</A |
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> the video mode and SDL will emulate that color depth with a shadow video surface.</P |
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><P |
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>The arguments to <TT |
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CLASS="FUNCTION" |
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>SDL_VideoModeOK</TT |
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> are the same ones you |
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would pass to <A |
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HREF="sdlsetvideomode.html" |
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>SDL_SetVideoMode</A |
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></P |
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></DIV |
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><DIV |
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CLASS="REFSECT1" |
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><A |
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NAME="AEN1225" |
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></A |
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><H2 |
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>Example</H2 |
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><PRE |
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CLASS="PROGRAMLISTING" |
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>SDL_Surface *screen; |
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Uint32 bpp; |
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. |
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. |
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. |
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printf("Checking mode 640x480@16bpp.\n"); |
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bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE); |
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if(!bpp){ |
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printf("Mode not available.\n"); |
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exit(-1); |
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} |
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printf("SDL Recommends 640x480@%dbpp.\n", bpp); |
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screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE); |
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. |
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.</PRE |
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></DIV |
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><DIV |
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CLASS="REFSECT1" |
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><A |
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NAME="AEN1228" |
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></A |
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><H2 |
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>See Also</H2 |
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><P |
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><A |
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HREF="sdlsetvideomode.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_SetVideoMode</TT |
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></A |
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>, |
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<A |
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HREF="sdlgetvideoinfo.html" |
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><TT |
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CLASS="FUNCTION" |
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>SDL_GetVideoInfo</TT |
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></A |
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></P |
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></DIV |
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>Prev</A |
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>Home</A |
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HREF="sdlsetvideomode.html" |
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>Next</A |
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WIDTH="33%" |
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>SDL_ListModes</TD |
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WIDTH="34%" |
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ALIGN="center" |
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VALIGN="top" |
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HREF="video.html" |
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>Up</A |
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WIDTH="33%" |
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ALIGN="right" |
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VALIGN="top" |
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>SDL_SetVideoMode</TD |
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> |