Re: Quitting one application from within another

FROM : Bill Cheeseman
DATE : Thu Dec 16 21:45:28 2004

on 2004-12-16 11:15 AM, Peter Browne at <email_removed> wrote:

> Hi, I'm wondering if it's possible to terminate an application from
> within another. I know you can launch applications etc by using the
> NSSharedWorkspace methods, but I haven't come across anything similar
> for terminating that application when it's no-longer needed. Any ideas?


Here's a generic Cocoa method to create a Quit Apple event and send it. It
hard-codes the target application's creator code (a four-character OSType)
because in my application I only want to quit a specific companion
application. For greater generality, add your own routines to get the
creator code of any application.

- (void)stopOtherApp {
        OSType signature = 'XXXX'; // put a real creator code here
        NSAppleEventDescriptor *applicationSpecifier =
[NSAppleEventDescriptor descriptorWithDescriptorType:typeApplSignature
bytes:&signature length:sizeof(OSType)];
        NSAppleEventDescriptor *quitApplicationAppleEvent =
[NSAppleEventDescriptor appleEventWithEventClass:kCoreEventClass
eventID:kAEQuitApplication targetDescriptor:applicationSpecifier
returnID:kAutoGenerateReturnID transactionID:kAnyTransactionID];
        AppleEvent *quitApplicationAppleEventPtr = (AEDesc
*)[quitApplicationAppleEvent aeDesc];
        if (quitApplicationAppleEventPtr) {
            AESendMessage(quitApplicationAppleEventPtr, NULL, kAENoReply,
kAEDefaultTimeout);
        }
}

--

Bill Cheeseman - <email_removed>
Quechee Software, Quechee, Vermont, USA
http://www.quecheesoftware.com

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