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annotate docs/man3/SDL_GL_GetProcAddress.3 @ 4170:092c0bc69155 SDL-1.2

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Fixed bug #618 Description From Tim Angus 2008-08-30 12:23:56 (-) [reply] As we all know SDL 1.2 doesn't handle dead keys well since one key press potentially equals two (or more) characters. For example, on many layouts, keying <backquote>,<space> results in <no character>,<backquote><space>. Since the unicode member of the SDL_keysym struct only has room for one character, only one can be returned. On Linux, the first character is returned. On Windows however, unless the exact number of characters generated by the keypress is 1, nothing is returned. The following patch addresses this inconsistency. Updated patch which includes a further fix to the handling of the numpad when numlock is on. This further fix is courtesy Amanieu d'Antras.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 13 Apr 2009 08:42:09 +0000
parents 4e3b250c950e
children 1238da4a7112
rev   line source
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1 .TH "SDL_GL_GetProcAddress" "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_GetProcAddress \- Get the address of a GL function
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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 \fBvoid *\fBSDL_GL_GetProcAddress\fP\fR(\fBconst char* proc\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Returns the address of the GL function \fBproc\fR, or \fBNULL\fR if the function is not found\&. If the GL library is loaded at runtime, with \fI\fBSDL_GL_LoadLibrary\fP\fR, then \fIall\fP GL functions must be retrieved this way\&. Usually this is used to retrieve function pointers to OpenGL extensions\&.
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12 .SH "EXAMPLE"
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13 .PP
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14 .nf
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15 \f(CWtypedef void (*GL_ActiveTextureARB_Func)(unsigned int);
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16 GL_ActiveTextureARB_Func glActiveTextureARB_ptr = 0;
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17 int has_multitexture=1;
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18 \&.
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19 \&.
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20 \&.
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21 /* Get function pointer */
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22 glActiveTextureARB_ptr=(GL_ActiveTextureARB_Func) SDL_GL_GetProcAddress("glActiveTextureARB");
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23
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24 /* Check for a valid function ptr */
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25 if(!glActiveTextureARB_ptr){
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26 fprintf(stderr, "Multitexture Extensions not present\&.
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27 ");
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28 has_multitexture=0;
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29 }
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30 \&.
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31 \&.
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32 \&.
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33 \&.
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34 if(has_multitexture){
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35 glActiveTextureARB_ptr(GL_TEXTURE0_ARB);
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36 \&.
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37 \&.
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38 }
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39 else{
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40 \&.
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41 \&.
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42 }\fR
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43 .fi
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44 .PP
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45 .SH "SEE ALSO"
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46 .PP
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47 \fI\fBSDL_GL_LoadLibrary\fP\fR
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48 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01