Mercurial > sdl-ios-xcode
annotate docs/html/sdlinitsubsystem.html @ 4324:1496aa09e41e SDL-1.2
Steven Noonan to sdl
While trying to build the SDLMain.m included with SDL 1.2.14, with
#define SDL_USE_NIB_FILE 1:
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:
In function '-[SDLMain fixMenu:withAppName:]':
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:122:
warning: 'sizeToFit' is deprecated (declared at
/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSMenu.h:281)
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:
In function 'main':
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:376:
warning: 'poseAsClass:' is deprecated (declared at
/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:127)
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:376:
error: 'poseAsClass:' is unavailable (declared at
/Developer/SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSObject.h:127)
/Users/steven/Development/darwinia/targets/macosx/Darwinia/SDLMain.m:377:
warning: passing argument 2 of 'NSApplicationMain' from incompatible
pointer type
Eric Wing to Sam
I don't have time today to look at this in detail, but the problem is definitely the poseAsClass: method.
This was deprecated in Obj-C 2.0 and not retained in 64-bit.
I've never used this method and it has always been limited to esoteric uses. I think this is why Apple wanted to dump it (among complicating some other things they do). I have read about others getting bit by this when migrating. Long story short, there really isn't a migration path for this method. The question that then must be asked is why are we using it (what does it accomplish), and then figure out the 'proper' way of accomplishing that.
Glancing at SDLMain.m, it's not obvious to me why it is there or what it is really accomplishing. My only speculation is that NSApplicationMain hardcodes something to look for NSApplication and a subclass (SDLApplication) fails for some reason (assuming that the original coder did this for good reason).
Three thoughts come to mind.
1) The Info.plist has properties to control things related to the startup class and nib.
NSPrincipalClass, NSMainNibFile
Maybe principle class needs to be SDLApplication and we can delete the poseAs
2) I was told that 10.6 introduced new APIs to make programatic NIB wrangling and avoidance easier. Unfortunately, I don't know the specifics.
3) Instead of subclassing NSApplication in SDLMain.m, maybe we can just add a category. It looks like the following is the only thing that is done (quick glance):
@interface SDLApplication : NSApplication
@end
@implementation SDLApplication
/* Invoked from the Quit menu item */
- (void)terminate:(id)sender
{
/* Post a SDL_QUIT event */
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
}
@end
So instead, we change this to: (warning written in mail and untested)
@interface NSApplication (SDLApplication)
- (void) terminate:(id)sender;
@end
@implementation NSApplication (SDLApplication)
/* Invoked from the Quit menu item */
- (void)terminate:(id)sender
{
/* Post a SDL_QUIT event */
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
}
@end
Then everywhere SDLApplication is used, we change it to NSApplication (and remove the poseAsClass line).
Perhaps you could ask the bug reporter to try this solution (#3).
And if that fails, maybe try #1.
-Eric
Steven Noonan to Sam
The suggested change (diff below) seems to work fine.
- Steven
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 12 Oct 2009 21:07:12 +0000 |
parents | 355632dca928 |
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rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_InitSubSystem</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
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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="General" | |
14 HREF="general.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="SDL_Init" | |
17 HREF="sdlinit.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL_QuitSubSystem" | |
20 HREF="sdlquitsubsystem.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 | |
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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="sdlinit.html" | |
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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="sdlquitsubsystem.html" | |
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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="SDLINITSUBSYSTEM" | |
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74 ></A |
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75 >SDL_InitSubSystem</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
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79 NAME="AEN510" |
0 | 80 ></A |
81 ><H2 | |
82 >Name</H2 | |
83 >SDL_InitSubSystem -- Initialize subsystems</DIV | |
84 ><DIV | |
85 CLASS="REFSYNOPSISDIV" | |
86 ><A | |
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87 NAME="AEN513" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
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94 NAME="AEN514" |
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 >int <B | |
106 CLASS="FSFUNC" | |
107 >SDL_InitSubSystem</B | |
108 ></CODE | |
109 >(Uint32 flags);</CODE | |
110 ></P | |
111 ><P | |
112 ></P | |
113 ></DIV | |
114 ></DIV | |
115 ><DIV | |
116 CLASS="REFSECT1" | |
117 ><A | |
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118 NAME="AEN520" |
0 | 119 ></A |
120 ><H2 | |
121 >Description</H2 | |
122 ><P | |
123 >After SDL has been initialized with <A | |
124 HREF="sdlinit.html" | |
125 ><TT | |
126 CLASS="FUNCTION" | |
127 >SDL_Init</TT | |
128 ></A | |
129 > you may initialize uninitialized subsystems with <TT | |
130 CLASS="FUNCTION" | |
131 >SDL_InitSubSystem</TT | |
132 >. The <TT | |
133 CLASS="PARAMETER" | |
134 ><I | |
135 >flags</I | |
136 ></TT | |
137 > parameter is the same as that used in <A | |
138 HREF="sdlinit.html" | |
139 ><TT | |
140 CLASS="FUNCTION" | |
141 >SDL_Init</TT | |
142 ></A | |
143 >.</P | |
144 ></DIV | |
145 ><DIV | |
146 CLASS="REFSECT1" | |
147 ><A | |
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148 NAME="AEN529" |
0 | 149 ></A |
150 ><H2 | |
151 >Examples</H2 | |
152 ><PRE | |
153 CLASS="PROGRAMLISTING" | |
154 >/* Seperating Joystick and Video initialization. */ | |
155 SDL_Init(SDL_INIT_VIDEO); | |
156 . | |
157 . | |
158 SDL_SetVideoMode(640, 480, 16, SDL_DOUBLEBUF|SDL_FULLSCREEN); | |
159 . | |
160 /* Do Some Video stuff */ | |
161 . | |
162 . | |
163 /* Initialize the joystick subsystem */ | |
164 SDL_InitSubSystem(SDL_INIT_JOYSTICK); | |
165 | |
166 /* Do some stuff with video and joystick */ | |
167 . | |
168 . | |
169 . | |
170 /* Shut them both down */ | |
171 SDL_Quit();</PRE | |
172 ></DIV | |
173 ><DIV | |
174 CLASS="REFSECT1" | |
175 ><A | |
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176 NAME="AEN532" |
0 | 177 ></A |
178 ><H2 | |
179 >Return Value</H2 | |
180 ><P | |
181 >Returns <SPAN | |
182 CLASS="RETURNVALUE" | |
183 >-1</SPAN | |
184 > on an error or <SPAN | |
185 CLASS="RETURNVALUE" | |
186 >0</SPAN | |
187 > on success.</P | |
188 ></DIV | |
189 ><DIV | |
190 CLASS="REFSECT1" | |
191 ><A | |
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192 NAME="AEN537" |
0 | 193 ></A |
194 ><H2 | |
195 >See Also</H2 | |
196 ><P | |
197 ><A | |
198 HREF="sdlinit.html" | |
199 ><TT | |
200 CLASS="FUNCTION" | |
201 >SDL_Init</TT | |
202 ></A | |
203 >, | |
204 <A | |
205 HREF="sdlquit.html" | |
206 ><TT | |
207 CLASS="FUNCTION" | |
208 >SDL_Quit</TT | |
209 ></A | |
210 >, | |
211 <A | |
212 HREF="sdlquitsubsystem.html" | |
213 ><TT | |
214 CLASS="FUNCTION" | |
215 >SDL_QuitSubSystem</TT | |
216 ></A | |
217 ></P | |
218 ></DIV | |
219 ><DIV | |
220 CLASS="NAVFOOTER" | |
221 ><HR | |
222 ALIGN="LEFT" | |
223 WIDTH="100%"><TABLE | |
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224 SUMMARY="Footer navigation table" |
0 | 225 WIDTH="100%" |
226 BORDER="0" | |
227 CELLPADDING="0" | |
228 CELLSPACING="0" | |
229 ><TR | |
230 ><TD | |
231 WIDTH="33%" | |
232 ALIGN="left" | |
233 VALIGN="top" | |
234 ><A | |
235 HREF="sdlinit.html" | |
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236 ACCESSKEY="P" |
0 | 237 >Prev</A |
238 ></TD | |
239 ><TD | |
240 WIDTH="34%" | |
241 ALIGN="center" | |
242 VALIGN="top" | |
243 ><A | |
244 HREF="index.html" | |
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245 ACCESSKEY="H" |
0 | 246 >Home</A |
247 ></TD | |
248 ><TD | |
249 WIDTH="33%" | |
250 ALIGN="right" | |
251 VALIGN="top" | |
252 ><A | |
253 HREF="sdlquitsubsystem.html" | |
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254 ACCESSKEY="N" |
0 | 255 >Next</A |
256 ></TD | |
257 ></TR | |
258 ><TR | |
259 ><TD | |
260 WIDTH="33%" | |
261 ALIGN="left" | |
262 VALIGN="top" | |
263 >SDL_Init</TD | |
264 ><TD | |
265 WIDTH="34%" | |
266 ALIGN="center" | |
267 VALIGN="top" | |
268 ><A | |
269 HREF="general.html" | |
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270 ACCESSKEY="U" |
0 | 271 >Up</A |
272 ></TD | |
273 ><TD | |
274 WIDTH="33%" | |
275 ALIGN="right" | |
276 VALIGN="top" | |
277 >SDL_QuitSubSystem</TD | |
278 ></TR | |
279 ></TABLE | |
280 ></DIV | |
281 ></BODY | |
282 ></HTML | |
283 > |