annotate docs/man3/SDL_GL_SetAttribute.3 @ 937:1e6366bde299

Date: Tue, 27 Jul 2004 17:14:00 +0200 From: "Eckhard Stolberg" Subject: Controller names in SDL for Windows I'm working on an Atari 2600 emulator for different systems that uses the SDL. Some time ago someone created an adaptor that lets you use your old Atari controllers with your computer through the USB port. Some of the Atari controllers require special handling by the emulator, so it would be nice, if it would be possible to detect if any of the controllers connected to the computer is this adaptor. SDL would allow that with the SDL_JoystickName function, but unfortunately it doesn't work properly on Windows. On Linux and MacOSX this function returns the name of the controller, but on Windows you'll only get the name of the joystick driver. Most joysticks nowadays use the generic Microsoft driver, so they all return the same name. In an old MSDN article (http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/dnarinput/html/msdn_extdirect.asp) Microsoft describes how to read out the OEM controller names from the registry. I have implemented this for the SDL controller handler on Windows, and now reading the joystick name works properly there too.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Aug 2004 03:45:58 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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1 .TH "SDL_GL_SetAttribute" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
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2 .SH "NAME"
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3 SDL_GL_SetAttribute\- Set a special SDL/OpenGL attribute
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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_GL_SetAttribute\fP\fR(\fBSDL_GLattr attr, int value\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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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\&.
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12 .SH "RETURN VALUE"
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13 .PP
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14 Returns \fB0\fR on success, or \fB-1\fR on error\&.
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15 .SH "EXAMPLE"
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16 .PP
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17 .nf
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18 \f(CWSDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
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19 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
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20 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
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21 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
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22 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
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23 if ( (screen=SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL )) == NULL ) {
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24 fprintf(stderr, "Couldn\&'t set GL mode: %s
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25 ", SDL_GetError());
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26 SDL_Quit();
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27 return;
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28 }\fR
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29 .fi
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30 .PP
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31 .PP
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32 .RS
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33 \fBNote:
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34 .PP
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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\&.
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36 .RE
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37 .SH "SEE ALSO"
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38 .PP
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39 \fI\fBSDL_GL_GetAttribute\fP\fR, \fIGL Attributes\fR
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40 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01