Mercurial > sdl-ios-xcode
annotate docs/html/sdlglgetprocaddress.html @ 4170:092c0bc69155 SDL-1.2
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 | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_GL_GetProcAddress</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="Video" | |
| 14 HREF="video.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_GL_LoadLibrary" | |
| 17 HREF="sdlglloadlibrary.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_GL_GetAttribute" | |
| 20 HREF="sdlglgetattribute.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="REFENTRY" | |
| 23 BGCOLOR="#FFF8DC" | |
| 24 TEXT="#000000" | |
| 25 LINK="#0000ee" | |
| 26 VLINK="#551a8b" | |
| 27 ALINK="#ff0000" | |
| 28 ><DIV | |
| 29 CLASS="NAVHEADER" | |
| 30 ><TABLE | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
31 SUMMARY="Header navigation table" |
| 0 | 32 WIDTH="100%" |
| 33 BORDER="0" | |
| 34 CELLPADDING="0" | |
| 35 CELLSPACING="0" | |
| 36 ><TR | |
| 37 ><TH | |
| 38 COLSPAN="3" | |
| 39 ALIGN="center" | |
| 40 >SDL Library Documentation</TH | |
| 41 ></TR | |
| 42 ><TR | |
| 43 ><TD | |
| 44 WIDTH="10%" | |
| 45 ALIGN="left" | |
| 46 VALIGN="bottom" | |
| 47 ><A | |
| 48 HREF="sdlglloadlibrary.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
49 ACCESSKEY="P" |
| 0 | 50 >Prev</A |
| 51 ></TD | |
| 52 ><TD | |
| 53 WIDTH="80%" | |
| 54 ALIGN="center" | |
| 55 VALIGN="bottom" | |
| 56 ></TD | |
| 57 ><TD | |
| 58 WIDTH="10%" | |
| 59 ALIGN="right" | |
| 60 VALIGN="bottom" | |
| 61 ><A | |
| 62 HREF="sdlglgetattribute.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
63 ACCESSKEY="N" |
| 0 | 64 >Next</A |
| 65 ></TD | |
| 66 ></TR | |
| 67 ></TABLE | |
| 68 ><HR | |
| 69 ALIGN="LEFT" | |
| 70 WIDTH="100%"></DIV | |
| 71 ><H1 | |
| 72 ><A | |
| 73 NAME="SDLGLGETPROCADDRESS" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
74 ></A |
|
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
75 >SDL_GL_GetProcAddress</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
79 NAME="AEN2678" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_GL_GetProcAddress -- Get the address of a GL function</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
87 NAME="AEN2681" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
94 NAME="AEN2682" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><PRE | |
| 99 CLASS="FUNCSYNOPSISINFO" | |
| 100 >#include "SDL.h"</PRE | |
| 101 ><P | |
| 102 ><CODE | |
| 103 ><CODE | |
| 104 CLASS="FUNCDEF" | |
| 105 >void *<B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_GL_GetProcAddress</B | |
| 108 ></CODE | |
| 109 >(const char* proc);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
118 NAME="AEN2688" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >Returns the address of the GL function <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >proc</I | |
| 127 ></TT | |
| 128 >, or <SPAN | |
| 129 CLASS="RETURNVALUE" | |
| 130 >NULL</SPAN | |
| 131 > if the function is not found. If the GL library is loaded at runtime, with <A | |
| 132 HREF="sdlglloadlibrary.html" | |
| 133 ><TT | |
| 134 CLASS="FUNCTION" | |
| 135 >SDL_GL_LoadLibrary</TT | |
| 136 ></A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
137 >, then <SPAN |
|
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
138 CLASS="emphasis" |
|
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
139 ><I |
| 0 | 140 CLASS="EMPHASIS" |
| 141 >all</I | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
142 ></SPAN |
| 0 | 143 > GL functions must be retrieved this way. Usually this is used to retrieve function pointers to OpenGL extensions.</P |
| 144 ></DIV | |
| 145 ><DIV | |
| 146 CLASS="REFSECT1" | |
| 147 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
148 NAME="AEN2696" |
| 0 | 149 ></A |
| 150 ><H2 | |
| 151 >Example</H2 | |
| 152 ><PRE | |
| 153 CLASS="PROGRAMLISTING" | |
| 154 >typedef void (*GL_ActiveTextureARB_Func)(unsigned int); | |
| 155 GL_ActiveTextureARB_Func glActiveTextureARB_ptr = 0; | |
| 156 int has_multitexture=1; | |
| 157 . | |
| 158 . | |
| 159 . | |
| 160 /* Get function pointer */ | |
| 161 glActiveTextureARB_ptr=(GL_ActiveTextureARB_Func) SDL_GL_GetProcAddress("glActiveTextureARB"); | |
| 162 | |
| 163 /* Check for a valid function ptr */ | |
| 164 if(!glActiveTextureARB_ptr){ | |
| 165 fprintf(stderr, "Multitexture Extensions not present.\n"); | |
| 166 has_multitexture=0; | |
| 167 } | |
| 168 . | |
| 169 . | |
| 170 . | |
| 171 . | |
| 172 if(has_multitexture){ | |
| 173 glActiveTextureARB_ptr(GL_TEXTURE0_ARB); | |
| 174 . | |
| 175 . | |
| 176 } | |
| 177 else{ | |
| 178 . | |
| 179 . | |
| 180 }</PRE | |
| 181 ></DIV | |
| 182 ><DIV | |
| 183 CLASS="REFSECT1" | |
| 184 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
185 NAME="AEN2699" |
| 0 | 186 ></A |
| 187 ><H2 | |
| 188 >See Also</H2 | |
| 189 ><P | |
| 190 ><A | |
| 191 HREF="sdlglloadlibrary.html" | |
| 192 ><TT | |
| 193 CLASS="FUNCTION" | |
| 194 >SDL_GL_LoadLibrary</TT | |
| 195 ></A | |
| 196 ></P | |
| 197 ></DIV | |
| 198 ><DIV | |
| 199 CLASS="NAVFOOTER" | |
| 200 ><HR | |
| 201 ALIGN="LEFT" | |
| 202 WIDTH="100%"><TABLE | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
203 SUMMARY="Footer navigation table" |
| 0 | 204 WIDTH="100%" |
| 205 BORDER="0" | |
| 206 CELLPADDING="0" | |
| 207 CELLSPACING="0" | |
| 208 ><TR | |
| 209 ><TD | |
| 210 WIDTH="33%" | |
| 211 ALIGN="left" | |
| 212 VALIGN="top" | |
| 213 ><A | |
| 214 HREF="sdlglloadlibrary.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
215 ACCESSKEY="P" |
| 0 | 216 >Prev</A |
| 217 ></TD | |
| 218 ><TD | |
| 219 WIDTH="34%" | |
| 220 ALIGN="center" | |
| 221 VALIGN="top" | |
| 222 ><A | |
| 223 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
224 ACCESSKEY="H" |
| 0 | 225 >Home</A |
| 226 ></TD | |
| 227 ><TD | |
| 228 WIDTH="33%" | |
| 229 ALIGN="right" | |
| 230 VALIGN="top" | |
| 231 ><A | |
| 232 HREF="sdlglgetattribute.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
233 ACCESSKEY="N" |
| 0 | 234 >Next</A |
| 235 ></TD | |
| 236 ></TR | |
| 237 ><TR | |
| 238 ><TD | |
| 239 WIDTH="33%" | |
| 240 ALIGN="left" | |
| 241 VALIGN="top" | |
| 242 >SDL_GL_LoadLibrary</TD | |
| 243 ><TD | |
| 244 WIDTH="34%" | |
| 245 ALIGN="center" | |
| 246 VALIGN="top" | |
| 247 ><A | |
| 248 HREF="video.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
249 ACCESSKEY="U" |
| 0 | 250 >Up</A |
| 251 ></TD | |
| 252 ><TD | |
| 253 WIDTH="33%" | |
| 254 ALIGN="right" | |
| 255 VALIGN="top" | |
| 256 >SDL_GL_GetAttribute</TD | |
| 257 ></TR | |
| 258 ></TABLE | |
| 259 ></DIV | |
| 260 ></BODY | |
| 261 ></HTML | |
| 262 > |