I need to be able to quit and re-launch other applications, and have
been getting all kinds of weird behavior. Maybe if someone could
explain this one little test case I've isolated, it would be a big help.
The code below attempts to launch TextEdit, wait 5 seconds, quit
TextEdit, wait 5 seconds, repeat forever. I get a launch, a quit, and
a launch. But when it tries to quit for the second time,
AESendMessage returns a -609 "Connection Invalid" error. I imagine
this is because it is trying to connect to the application instance
that it had quit the first time.
Documention of AESendMessage implies that recent versions of
AppleScript will automatically try and reconnect, and that there is no
more option to set.
How can I get it to forget the old connection and make a new one?
Thanks,
Jerry
P.S. I'm having another issue too. Under some conditions, if I
launch an application using the NSWorkspace method, it will quit
(quietly, no crash) as soon as my application resumes normal
activity. I'm saving that for another post, unless someone has an
"Aha!".
I've also tried using NSAppleScript and Scripting Bridge but have had
similar problems.
#import <Cocoa/Cocoa.h>
void LaunchAndSleep(NSString* bundleIdentifier, float seconds) {
NSLog(@"Launching") ;
BOOL ok ;
ok = [[NSWorkspace sharedWorkspace]
launchAppWithBundleIdentifier:bundleIdentifier
options:0
additionalEventParamDescriptor:nil
launchIdentifier:NULL] ;
NSLog(@"Launch success = %d", ok) ;
NSLog(@"Sleep after launch") ;
usleep(seconds * 1e6) ;
}
void QuitAndSleep(NSString* bundleIdentifier, float seconds) {
NSLog(@"Quitting") ;
const char* identifier = [bundleIdentifier UTF8String] ;
NSAppleEventDescriptor *as ;
as = [NSAppleEventDescriptor
descriptorWithDescriptorType:typeApplicationBundleID
bytes:identifier
length:strlen(identifier)];
NSAppleEventDescriptor *ae ;
ae = [NSAppleEventDescriptor
appleEventWithEventClass:kCoreEventClass
eventID:kAEQuitApplication
targetDescriptor:as
returnID:kAutoGenerateReturnID
transactionID:kAnyTransactionID];
AppleEvent *quitApplicationAppleEventPtr = (AEDesc*)[ae aeDesc];
if (quitApplicationAppleEventPtr) {
OSStatus err = AESendMessage(quitApplicationAppleEventPtr,
NULL,
kAENoReply,
kAEDefaultTimeout) ;
NSLog(@"Quit err = %d", err) ;
}
NSLog(@"Sleep after quit") ;
usleep(seconds * 1e6) ;
}
int main (int argc, const char * argv[]) {
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
NSString* bundleIdentifier = @"com.apple.TextEdit" ;
while (YES) {
LaunchAndSleep(bundleIdentifier, 5) ;
QuitAndSleep(bundleIdentifier, 5) ;
}
[pool release] ;
}
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