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Updated main.c with usage information displayed to stderr upon error and... #5

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Updated main.c with usage information displayed to stderr upon error and... #5

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Updated main.c with usage information displayed to stderr upon error …
jgrisham May 26, 2012
c7718ec
Merge branch 'jhford:master' into patch-1
jgrisham Nov 29, 2021
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27 changes: 27 additions & 0 deletions main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -96,11 +96,38 @@ int main(int argc, const char *argv[]) {
}
}
}
} else if (strcmp(argv[1], "-help") == 0) {
// Send help information to stdout since it was requested
printf("\n screenresolution sets the screen resolution on Mac computers.\n\n");
printf(" screenresolution version %s\n", VERSION);
printf(" Licensed under GPLv2\n");
printf(" Copyright (C) 2011 John Ford <[email protected]>\n\n");
printf(" usage: screenresolution [get] - Show the resolution of all active displays\n");
printf(" screenresolution [list] - Show available resolutions of all active displays\n");
printf(" screenresolution [skip] [display1resolution] [display2resolution]\n");
printf(" - Sets display resolution and refresh rate\n");
printf(" screenresolution -version - Displays version information for screenresolution\n");
printf(" screenresolution -help - Displays this help information\n\n");
printf(" examples: screenresolution 800x600x32 - Sets main display to 800x600x32\n");
printf(" screenresolution 800x600x32 800x600x32 - Sets both displays to 800x600x32\n");
printf(" screenresolution skip 800x600x32 - Sets second display to 800x600x32\n\n");
} else if (strcmp(argv[1], "-version") == 0) {
printf("screenresolution version %s\nLicensed under GPLv2\n", VERSION);
keepgoing = 0;
} else {
NSLog(CFSTR("I'm sorry %s. I'm afraid I can't do that"), getlogin());
// Send help information to stderr
NSLog(CFSTR("%s"), " Error: unable to copy current display mode\n\n");
NSLog(CFSTR(" screenresolution version %s -- Licensed under GPLv2\n\n\n"), VERSION);
NSLog(CFSTR("%s"), " usage: screenresolution [get] - Show the resolution of all active displays");
NSLog(CFSTR("%s"), " screenresolution [list] - Show available resolutions of all active displays");
NSLog(CFSTR("%s"), " screenresolution [skip] [display1resolution] [display2resolution]");
NSLog(CFSTR("%s"), " - Sets display resolution and refresh rate");
NSLog(CFSTR("%s"), " screenresolution -version - Displays version information for screenresolution");
NSLog(CFSTR("%s"), " screenresolution -help - Displays this help information\n\n");
NSLog(CFSTR("%s"), " examples: screenresolution 800x600x32 - Sets main display to 800x600x32");
NSLog(CFSTR("%s"), " screenresolution 800x600x32 800x600x32 - Sets both displays to 800x600x32");
NSLog(CFSTR("%s"), " screenresolution skip 800x600x32 - Sets second display to 800x600x32\n\n");
exitcode++;
keepgoing = 0;
}
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