Mercurial > almixer_isolated

annotate EXAMPLES/SDLMain.m @ 50:db5bc1c80057

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Workaround for terrible iOS 5.0 regression bug in Apple's OpenAL implementation with regards to resetting streaming sources. The fix uses a version check to determine if the workaround is employed. Once Apple fixes the problem, an upper bounds version check should be added.
author Eric Wing <ewing@anscamobile.com>
date Fri, 21 Oct 2011 17:14:19 -0700
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4
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1 /* SDLMain.m - main entry point for our Cocoa-ized SDL app
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2 Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
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3 Non-NIB-Code & other changes: Max Horn <max@quendi.de>
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4
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5 Feel free to customize this file to suit your needs
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6 */
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7
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8 #include "SDL.h"
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9 #include "SDLMain.h"
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10 #include <sys/param.h> /* for MAXPATHLEN */
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11 #include <unistd.h>
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12
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13 /* For some reaon, Apple removed setAppleMenu from the headers in 10.4,
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14 but the method still is there and works. To avoid warnings, we declare
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15 it ourselves here. */
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16 @interface NSApplication(SDL_Missing_Methods)
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17 - (void)setAppleMenu:(NSMenu *)menu;
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18 @end
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19
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20 /* Use this flag to determine whether we use SDLMain.nib or not */
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21 #define SDL_USE_NIB_FILE 0
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22
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23 /* Use this flag to determine whether we use CPS (docking) or not */
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24 #define SDL_USE_CPS 1
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25 #ifdef SDL_USE_CPS
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26 /* Portions of CPS.h */
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27 typedef struct CPSProcessSerNum
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28 {
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29 UInt32 lo;
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30 UInt32 hi;
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31 } CPSProcessSerNum;
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32
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33 extern OSErr CPSGetCurrentProcess( CPSProcessSerNum *psn);
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34 extern OSErr CPSEnableForegroundOperation( CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5);
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35 extern OSErr CPSSetFrontProcess( CPSProcessSerNum *psn);
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36
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37 #endif /* SDL_USE_CPS */
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38
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39 static int gArgc;
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40 static char **gArgv;
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41 static BOOL gFinderLaunch;
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42 static BOOL gCalledAppMainline = FALSE;
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43
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44 static NSString *getApplicationName(void)
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45 {
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46 const NSDictionary *dict;
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47 NSString *appName = 0;
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48
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49 /* Determine the application name */
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50 dict = (const NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle());
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51 if (dict)
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52 appName = [dict objectForKey: @"CFBundleName"];
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53
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54 if (![appName length])
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55 appName = [[NSProcessInfo processInfo] processName];
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56
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57 return appName;
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58 }
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59
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60 #if SDL_USE_NIB_FILE
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61 /* A helper category for NSString */
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62 @interface NSString (ReplaceSubString)
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63 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
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64 @end
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65 #endif
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66
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67 @interface SDLApplication : NSApplication
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68 @end
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69
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70 @implementation SDLApplication
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71 /* Invoked from the Quit menu item */
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72 - (void)terminate:(id)sender
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73 {
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74 /* Post a SDL_QUIT event */
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75 SDL_Event event;
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76 event.type = SDL_QUIT;
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77 SDL_PushEvent(&event);
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78 }
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79 @end
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80
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81 /* The main class of the application, the application's delegate */
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82 @implementation SDLMain
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83
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84 /* Set the working directory to the .app's parent directory */
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85 - (void) setupWorkingDirectory:(BOOL)shouldChdir
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86 {
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87 if (shouldChdir)
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88 {
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89 char parentdir[MAXPATHLEN];
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90 CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
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91 CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
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92 if (CFURLGetFileSystemRepresentation(url2, 1, (UInt8 *)parentdir, MAXPATHLEN)) {
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93 chdir(parentdir); /* chdir to the binary app's parent */
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94 }
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95 CFRelease(url);
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96 CFRelease(url2);
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97 }
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98 }
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99
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100 #if SDL_USE_NIB_FILE
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101
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102 /* Fix menu to contain the real app name instead of "SDL App" */
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103 - (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
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104 {
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105 NSRange aRange;
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106 NSEnumerator *enumerator;
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107 NSMenuItem *menuItem;
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108
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109 aRange = [[aMenu title] rangeOfString:@"SDL App"];
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110 if (aRange.length != 0)
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111 [aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
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112
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113 enumerator = [[aMenu itemArray] objectEnumerator];
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114 while ((menuItem = [enumerator nextObject]))
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115 {
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116 aRange = [[menuItem title] rangeOfString:@"SDL App"];
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117 if (aRange.length != 0)
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118 [menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
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119 if ([menuItem hasSubmenu])
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120 [self fixMenu:[menuItem submenu] withAppName:appName];
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121 }
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122 [ aMenu sizeToFit ];
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123 }
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124
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125 #else
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126
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127 static void setApplicationMenu(void)
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128 {
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129 /* warning: this code is very odd */
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130 NSMenu *appleMenu;
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131 NSMenuItem *menuItem;
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132 NSString *title;
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133 NSString *appName;
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134
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135 appName = getApplicationName();
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136 appleMenu = [[NSMenu alloc] initWithTitle:@""];
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137
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138 /* Add menu items */
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139 title = [@"About " stringByAppendingString:appName];
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140 [appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
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141
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142 [appleMenu addItem:[NSMenuItem separatorItem]];
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143
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144 title = [@"Hide " stringByAppendingString:appName];
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145 [appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
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146
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147 menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"];
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148 [menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)];
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149
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150 [appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
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151
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152 [appleMenu addItem:[NSMenuItem separatorItem]];
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153
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154 title = [@"Quit " stringByAppendingString:appName];
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155 [appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
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156
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157
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158 /* Put menu into the menubar */
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159 menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
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160 [menuItem setSubmenu:appleMenu];
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161 [[NSApp mainMenu] addItem:menuItem];
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162
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163 /* Tell the application object that this is now the application menu */
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164 [NSApp setAppleMenu:appleMenu];
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165
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166 /* Finally give up our references to the objects */
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167 [appleMenu release];
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168 [menuItem release];
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169 }
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170
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171 /* Create a window menu */
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172 static void setupWindowMenu(void)
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173 {
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174 NSMenu *windowMenu;
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175 NSMenuItem *windowMenuItem;
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176 NSMenuItem *menuItem;
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177
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178 windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
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179
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180 /* "Minimize" item */
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181 menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
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182 [windowMenu addItem:menuItem];
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183 [menuItem release];
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184
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185 /* Put menu into the menubar */
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186 windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
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187 [windowMenuItem setSubmenu:windowMenu];
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188 [[NSApp mainMenu] addItem:windowMenuItem];
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189
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190 /* Tell the application object that this is now the window menu */
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191 [NSApp setWindowsMenu:windowMenu];
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192
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193 /* Finally give up our references to the objects */
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194 [windowMenu release];
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195 [windowMenuItem release];
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196 }
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197
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198 /* Replacement for NSApplicationMain */
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199 static void CustomApplicationMain (int argc, char **argv)
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200 {
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201 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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202 SDLMain *sdlMain;
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203
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204 /* Ensure the application object is initialised */
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205 [SDLApplication sharedApplication];
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206
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207 #ifdef SDL_USE_CPS
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208 {
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209 CPSProcessSerNum PSN;
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210 /* Tell the dock about us */
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211 if (!CPSGetCurrentProcess(&PSN))
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212 if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
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213 if (!CPSSetFrontProcess(&PSN))
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214 [SDLApplication sharedApplication];
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215 }
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216 #endif /* SDL_USE_CPS */
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217
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218 /* Set up the menubar */
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219 [NSApp setMainMenu:[[NSMenu alloc] init]];
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220 setApplicationMenu();
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221 setupWindowMenu();
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222
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223 /* Create SDLMain and make it the app delegate */
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224 sdlMain = [[SDLMain alloc] init];
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225 [NSApp setDelegate:sdlMain];
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226
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227 /* Start the main event loop */
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228 [NSApp run];
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229
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230 [sdlMain release];
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231 [pool release];
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232 }
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233
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234 #endif
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235
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236
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237 /*
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238 * Catch document open requests...this lets us notice files when the app
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239 * was launched by double-clicking a document, or when a document was
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240 * dragged/dropped on the app's icon. You need to have a
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241 * CFBundleDocumentsType section in your Info.plist to get this message,
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242 * apparently.
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243 *
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244 * Files are added to gArgv, so to the app, they'll look like command line
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245 * arguments. Previously, apps launched from the finder had nothing but
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246 * an argv[0].
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247 *
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248 * This message may be received multiple times to open several docs on launch.
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249 *
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250 * This message is ignored once the app's mainline has been called.
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251 */
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252 - (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
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253 {
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254 const char *temparg;
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255 size_t arglen;
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256 char *arg;
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257 char **newargv;
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258
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259 if (!gFinderLaunch) /* MacOS is passing command line args. */
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260 return FALSE;
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261
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262 if (gCalledAppMainline) /* app has started, ignore this document. */
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263 return FALSE;
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264
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265 temparg = [filename UTF8String];
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266 arglen = SDL_strlen(temparg) + 1;
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267 arg = (char *) SDL_malloc(arglen);
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268 if (arg == NULL)
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269 return FALSE;
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270
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271 newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2));
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272 if (newargv == NULL)
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273 {
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274 SDL_free(arg);
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275 return FALSE;
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276 }
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277 gArgv = newargv;
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278
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279 SDL_strlcpy(arg, temparg, arglen);
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280 gArgv[gArgc++] = arg;
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281 gArgv[gArgc] = NULL;
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282 return TRUE;
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283 }
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284
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285
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286 /* Called when the internal event loop has just started running */
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287 - (void) applicationDidFinishLaunching: (NSNotification *) note
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288 {
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289 int status;
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290
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291 /* Set the working directory to the .app's parent directory */
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292 [self setupWorkingDirectory:gFinderLaunch];
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293
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294 #if SDL_USE_NIB_FILE
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295 /* Set the main menu to contain the real app name instead of "SDL App" */
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296 [self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
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297 #endif
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298
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299 /* Hand off to main application code */
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300 gCalledAppMainline = TRUE;
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301 status = SDL_main (gArgc, gArgv);
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302
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303 /* We're done, thank you for playing */
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304 exit(status);
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305 }
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306 @end
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307
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308
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309 @implementation NSString (ReplaceSubString)
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310
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311 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
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312 {
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313 unsigned int bufferSize;
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314 unsigned int selfLen = [self length];
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315 unsigned int aStringLen = [aString length];
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316 unichar *buffer;
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317 NSRange localRange;
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318 NSString *result;
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319
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320 bufferSize = selfLen + aStringLen - aRange.length;
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321 buffer = (unichar *)NSAllocateMemoryPages(bufferSize*sizeof(unichar));
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322
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323 /* Get first part into buffer */
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324 localRange.location = 0;
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325 localRange.length = aRange.location;
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326 [self getCharacters:buffer range:localRange];
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327
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328 /* Get middle part into buffer */
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329 localRange.location = 0;
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330 localRange.length = aStringLen;
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331 [aString getCharacters:(buffer+aRange.location) range:localRange];
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332
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333 /* Get last part into buffer */
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334 localRange.location = aRange.location + aRange.length;
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335 localRange.length = selfLen - localRange.location;
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336 [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
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337
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338 /* Build output string */
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339 result = [NSString stringWithCharacters:buffer length:bufferSize];
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340
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341 NSDeallocateMemoryPages(buffer, bufferSize);
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342
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343 return result;
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344 }
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345
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346 @end
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347
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348
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349
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350 #ifdef main
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351 # undef main
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352 #endif
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353
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354
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355 /* Main entry point to executable - should *not* be SDL_main! */
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356 int main (int argc, char **argv)
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357 {
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358 /* Copy the arguments into a global variable */
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359 /* This is passed if we are launched by double-clicking */
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360 if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
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361 gArgv = (char **) SDL_malloc(sizeof (char *) * 2);
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362 gArgv[0] = argv[0];
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363 gArgv[1] = NULL;
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364 gArgc = 1;
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365 gFinderLaunch = YES;
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366 } else {
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367 int i;
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368 gArgc = argc;
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369 gArgv = (char **) SDL_malloc(sizeof (char *) * (argc+1));
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370 for (i = 0; i <= argc; i++)
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371 gArgv[i] = argv[i];
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372 gFinderLaunch = NO;
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373 }
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374
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375 #if SDL_USE_NIB_FILE
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376 [SDLApplication poseAsClass:[NSApplication class]];
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377 NSApplicationMain (argc, argv);
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378 #else
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379 CustomApplicationMain (argc, argv);
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380 #endif
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381 return 0;
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382 }
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383