A little while ago I shared a snip of code I put in VoodooPad development builds, which beeps at me when I launch a second copy. I run into this problem because I use VoodooPad all day long, and - well, since I'm VoodooPad's creator, sometimes I'll accidently get multiple copies running which I don't want.

Anyway.

I've got a better version now (and I don't know why I didn't do this the first time either); use AppleScript to quit the old version and then continue on the app's merry way. I put this in my main.m file, before NSApplicationMain():

#ifdef DEBUG

NSWorkspace *workspace = [NSWorkspace sharedWorkspace];
NSArray *launchedApplications = [workspace launchedApplications];
for (NSDictionary *junk in launchedApplications) {
  if ([@"com.flyingmeat.VoodooPad_Pro" isEqualToString:[junk objectForKey:@"NSApplicationBundleIdentifier"]]) {
    NSLog(@"It's already running you moron");
    system("/usr/bin/osascript -e 'tell app \"VoodooPad Pro\" to quit'");
    sleep(1.5f); // let the quit actually happen.
  }
}
#endif


Yes yes yes, using system() is bad. I know. It's only ever run on my desktop though.
Pub 2008.06.30 12:06 PM