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comparison docs/man3/SDL_GL_SetAttribute.3 @ 0:74212992fb08

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Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
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children 55f1f1b3e27d
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1 .TH "SDL_GL_SetAttribute" "3" "Mon 12 Mar 2001, 01:04" "SDL" "SDL API Reference"
2 .SH "NAME"
3 SDL_GL_SetAttribute\- Set a special SDL/OpenGL attribute
4 .SH "SYNOPSIS"
5 .PP
6 \fB#include "SDL\&.h"
7 .sp
8 \fBint \fBSDL_GL_SetAttribute\fP\fR(\fBSDL_GLattr attr, int value\fR);
9 .SH "DESCRIPTION"
10 .PP
11 Sets the OpenGL \fIattribute\fR \fBattr\fR to \fBvalue\fR\&. The attributes you set don\&'t take effect until after a call to \fI\fBSDL_SetVideoMode\fP\fR\&. You should use \fI\fBSDL_GL_GetAttribute\fP\fR to check the values after a \fBSDL_SetVideoMode\fP call\&.
12 .SH "RETURN VALUE"
13 .PP
14 Returns \fB0\fR on success, or \fB-1\fR on error\&.
15 .SH "EXAMPLE"
16 .PP
17 .nf
18 \f(CWSDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
19 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
20 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
21 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
22 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
23 if ( (screen=SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL )) == NULL ) {
24 fprintf(stderr, "Couldn\&'t set GL mode: %s
25 ", SDL_GetError());
26 SDL_Quit();
27 return;
28 }\fR
29 .fi
30 .PP
31 .PP
32 .RS
33 \fBNote:
34 .PP
35 The \fBSDL_DOUBLEBUF\fP flag is not required to enable double buffering when setting an OpenGL video mode\&. Double buffering is enabled or disabled using the SDL_GL_DOUBLEBUFFER attribute\&.
36 .RE
37 .SH "SEE ALSO"
38 .PP
39 \fI\fBSDL_GL_GetAttribute\fP\fR, \fIGL Attributes\fR
40 ...\" created by instant / docbook-to-man, Mon 12 Mar 2001, 01:04