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annotate docs/man3/SDL_VideoModeOK.3 @ 4347:38f22ed3a433 SDL-1.2

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Option to fix bug #851 For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 17 Oct 2009 06:55:17 +0000
parents 1238da4a7112
children
rev   line source
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e5bc29de3f0a Updated from the SDL Documentation Project
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1 .TH "SDL_VideoModeOK" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
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2 .SH "NAME"
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3 SDL_VideoModeOK \- Check to see if a particular video mode is supported\&.
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4 .SH "SYNOPSIS"
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5 .PP
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6 \fB#include "SDL\&.h"
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7 .sp
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8 \fBint \fBSDL_VideoModeOK\fP\fR(\fBint width, int height, int bpp, Uint32 flags\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 \fBSDL_VideoModeOK\fP returns \fB0\fR 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 \fIsurface\fR flags (see \fI\fBSDL_SetVideoMode\fP\fR)\&.
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12 .PP
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13 The bits-per-pixel value returned is only a suggested mode\&. You can usually request and bpp you want when \fIsetting\fR the video mode and SDL will emulate that color depth with a shadow video surface\&.
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14 .PP
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15 The arguments to \fBSDL_VideoModeOK\fP are the same ones you would pass to \fISDL_SetVideoMode\fR
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16 .SH "EXAMPLE"
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17 .PP
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18 .nf
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19 \f(CWSDL_Surface *screen;
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20 Uint32 bpp;
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21 \&.
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22 \&.
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23 \&.
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24 printf("Checking mode 640x480@16bpp\&.
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25 ");
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26 bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE);
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27
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28 if(!bpp){
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29 printf("Mode not available\&.
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30 ");
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31 exit(-1);
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32 }
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33
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34 printf("SDL Recommends 640x480@%dbpp\&.
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35 ", bpp);
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36 screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE);
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37 \&.
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38 \&.\fR
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39 .fi
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40 .PP
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41 .SH "SEE ALSO"
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42 .PP
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43 \fI\fBSDL_SetVideoMode\fP\fR, \fI\fBSDL_GetVideoInfo\fP\fR
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44 .\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01