RE: Reliable way to do something on shutdown?
From: J. Landman Gay ShutdownRequest is sent when the user tries to quit. CloseStackRequest is sent when they try to close a window, like when they click on the close box. Handling closeStack, and calling shutdown if it's the main stack, seems to solve the problem. Just in case, I wrote the shutdown handler so that if it's called twice, nothing bad will happen, so that should be safe no matter how it works under OS X or Linux. Now, if only someone knew the answer to my hilitedLine question. (Nudge, nudge.) -- Ciao, Paul D. DeRocco Paulmailto:pdero...@ix.netcom.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
On 19/06/2013, at 04:31 PM, Paul D. DeRocco wrote: From: J. Landman Gay ShutdownRequest is sent when the user tries to quit. CloseStackRequest is sent when they try to close a window, like when they click on the close box. Handling closeStack, and calling shutdown if it's the main stack, seems to solve the problem. Just in case, I wrote the shutdown handler so that if it's called twice, nothing bad will happen, so that should be safe no matter how it works under OS X or Linux. One more thing - if you have a special clean up routine then you'll need to handle the user quitting using a keyboard shortcut (cmd-Q) separately on OSX. Something like this... on appleEvent pClass,pID,pSender switch (pClass pID) case aevtquit myShutdownRoutine pass appleEvent break default pass appleEvent break end switch end appleEvent Now, if only someone knew the answer to my hilitedLine question. (Nudge, nudge.) Not sure what's going on there. Have you tried an opencard handler? Or tried using a 'send' to trigger the change? Terry... -- Ciao, Paul D. DeRocco Paulmailto:pdero...@ix.netcom.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode Dr Terry Judd Senior Lecturer in Medical Education Medical Eduction Unit Faculty of Medicine, Dentistry Health Sciences The University of Melbourne ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
On 6/19/13 2:11 AM, Terry Judd wrote: One more thing - if you have a special clean up routine then you'll need to handle the user quitting using a keyboard shortcut (cmd-Q) separately on OSX. Something like this... on appleEvent pClass,pID,pSender switch (pClass pID) case aevtquit myShutdownRoutine pass appleEvent break default pass appleEvent break end switch end appleEvent Just curious why you'd need an AppleEvent. Wouldn't a shutdown handler be enough? I've never had to use an AppleEvent for that, but would like to know what situation would require it. Now, if only someone knew the answer to my hilitedLine question. (Nudge, nudge.) Not sure what's going on there. Have you tried an opencard handler? Or tried using a 'send' to trigger the change? That's what I'd do too. The engine does some internal housekeeping when it opens a card or a stack, and one of those things is automatic focus and automatic hiliting of list fields. Sometimes that gets in the way. Sending a message in time during preOpenCard to a handler that sets the hilite usually works because it happens after the automatic stuff completes. -- Jacqueline Landman Gay | jac...@hyperactivesw.com HyperActive Software | http://www.hyperactivesw.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
On 20/06/2013, at 02:45 AM, J. Landman Gay wrote: On 6/19/13 2:11 AM, Terry Judd wrote: One more thing - if you have a special clean up routine then you'll need to handle the user quitting using a keyboard shortcut (cmd-Q) separately on OSX. Something like this... on appleEvent pClass,pID,pSender switch (pClass pID) case aevtquit myShutdownRoutine pass appleEvent break default pass appleEvent break end switch end appleEvent Just curious why you'd need an AppleEvent. Wouldn't a shutdown handler be enough? I've never had to use an AppleEvent for that, but would like to know what situation would require it. No, you're right. I was under the impression that cmd-q didn't trigger a shutdown request message. Perhaps it didn't in the distant past and I never registered the change. Terry... Dr Terry Judd Senior Lecturer in Medical Education Medical Eduction Unit Faculty of Medicine, Dentistry Health Sciences The University of Melbourne ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
What about using a closestack (or closestackrequest) handler? Terry... On 19/06/2013, at 10:07 AM, Paul D. DeRocco wrote: My app uses an external, which if not properly closed causes LiveCode, or my standalone, to remain as an orphan process under Windows until I forcibly kill it. So far, I haven't figured out how to intercept the shutdown when it comes from the close button in the corner of the window. First, I tried adding a shutdown handler to my main stack, which didn't work. Then, I noticed the note in the Dictionary, and created an invisible button which had a shutdown handler, and made its script a backscript, but that didn't work. Then, I noticed that the Dictionary said that shutdown is sent to the current card of the defaultStack, and not the stack itself, so I gave the card a shutdown handler, but that didn't work. I don't really care if there's some reason this can't work in the IDE, since I can just remember to manually close the external. But it has to work in the standalone. My app, in case it matters, has a main stack with one card, and three subsidiary stacks for modal dialog boxes, none of which are open when the program is shut down. It works fine if I call quit from a menu handler, but not when I click the X in the corner. What's the right way to do this? -- Ciao, Paul D. DeRocco Paulmailto:pdero...@ix.netcom.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode Dr Terry Judd Senior Lecturer in Medical Education Medical Eduction Unit Faculty of Medicine, Dentistry Health Sciences The University of Melbourne ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
Hi Paul, Maybe a shutDownRequest handler in the script of your mainStack would do the job. In effect this lets you pause the shutdown process before it does anything, make sure your external is closed, then pass shutdownRequest. I think I would start there. Or 'closeStackRequest' like Terry suggested - it would work in the IDE or the standalone. That might be a better approach. Phil Davis On 6/18/13 5:07 PM, Paul D. DeRocco wrote: My app uses an external, which if not properly closed causes LiveCode, or my standalone, to remain as an orphan process under Windows until I forcibly kill it. So far, I haven't figured out how to intercept the shutdown when it comes from the close button in the corner of the window. First, I tried adding a shutdown handler to my main stack, which didn't work. Then, I noticed the note in the Dictionary, and created an invisible button which had a shutdown handler, and made its script a backscript, but that didn't work. Then, I noticed that the Dictionary said that shutdown is sent to the current card of the defaultStack, and not the stack itself, so I gave the card a shutdown handler, but that didn't work. I don't really care if there's some reason this can't work in the IDE, since I can just remember to manually close the external. But it has to work in the standalone. My app, in case it matters, has a main stack with one card, and three subsidiary stacks for modal dialog boxes, none of which are open when the program is shut down. It works fine if I call quit from a menu handler, but not when I click the X in the corner. What's the right way to do this? -- Phil Davis ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
RE: Reliable way to do something on shutdown?
From: Phil Davis Maybe a shutDownRequest handler in the script of your mainStack would do the job. In effect this lets you pause the shutdown process before it does anything, make sure your external is closed, then pass shutdownRequest. I think I would start there. Actually, that's where I did start, and it didn't work either. Or 'closeStackRequest' like Terry suggested - it would work in the IDE or the standalone. That might be a better approach. I'll try that this evening. But I wish I understood why what should obviously work, doesn't. -- Ciao, Paul D. DeRocco Paulmailto:pdero...@ix.netcom.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
Are you making sure any other open stacks are being closed as well (for example in a closeStack or closeStackRequest message handler)? I've also had trouble with revBrowser in the past and always implicitly 'destroyed' any browser instances as I was cleaning up prior to a quit. Terry... On 19/06/2013, at 10:59 AM, Paul D. DeRocco wrote: From: Phil Davis Maybe a shutDownRequest handler in the script of your mainStack would do the job. In effect this lets you pause the shutdown process before it does anything, make sure your external is closed, then pass shutdownRequest. I think I would start there. Actually, that's where I did start, and it didn't work either. Or 'closeStackRequest' like Terry suggested - it would work in the IDE or the standalone. That might be a better approach. I'll try that this evening. But I wish I understood why what should obviously work, doesn't. -- Ciao, Paul D. DeRocco Paulmailto:pdero...@ix.netcom.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode Dr Terry Judd Senior Lecturer in Medical Education Medical Eduction Unit Faculty of Medicine, Dentistry Health Sciences The University of Melbourne ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
On 6/18/13 7:59 PM, Paul D. DeRocco wrote: From: Phil Davis Maybe a shutDownRequest handler in the script of your mainStack would do the job. In effect this lets you pause the shutdown process before it does anything, make sure your external is closed, then pass shutdownRequest. I think I would start there. Actually, that's where I did start, and it didn't work either. Or 'closeStackRequest' like Terry suggested - it would work in the IDE or the standalone. That might be a better approach. I'll try that this evening. But I wish I understood why what should obviously work, doesn't. ShutdownRequest is sent when the user tries to quit. CloseStackRequest is sent when they try to close a window, like when they click on the close box. -- Jacqueline Landman Gay | jac...@hyperactivesw.com HyperActive Software | http://www.hyperactivesw.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
RE: Reliable way to do something on shutdown?
From: J. Landman Gay ShutdownRequest is sent when the user tries to quit. CloseStackRequest is sent when they try to close a window, like when they click on the close box. Sounds like I need to handle both, then. It seems wrong to me that there is no message that universally indicates shutdown, no matter how it is invoked, but I guess I can live with it. -- Ciao, Paul D. DeRocco Paulmailto:pdero...@ix.netcom.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
On 6/18/13 10:51 PM, Paul D. DeRocco wrote: From: J. Landman Gay ShutdownRequest is sent when the user tries to quit. CloseStackRequest is sent when they try to close a window, like when they click on the close box. Sounds like I need to handle both, then. It seems wrong to me that there is no message that universally indicates shutdown, no matter how it is invoked, but I guess I can live with it. Well, on a Mac, closing the last window doesn't shut down the app. The app stays resident and sits there with nothing but its menu bar showing, waiting for you to choose Quit. :) -- Jacqueline Landman Gay | jac...@hyperactivesw.com HyperActive Software | http://www.hyperactivesw.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
Re: Reliable way to do something on shutdown?
On 6/18/13 11:03 PM, J. Landman Gay wrote: On 6/18/13 10:51 PM, Paul D. DeRocco wrote: From: J. Landman Gay ShutdownRequest is sent when the user tries to quit. CloseStackRequest is sent when they try to close a window, like when they click on the close box. Sounds like I need to handle both, then. It seems wrong to me that there is no message that universally indicates shutdown, no matter how it is invoked, but I guess I can live with it. Well, on a Mac, closing the last window doesn't shut down the app. The app stays resident and sits there with nothing but its menu bar showing, waiting for you to choose Quit. :) I take that back -- closing the *last* window does shut it down. But it isn't always the last window the user is closing, so we need two messages. -- Jacqueline Landman Gay | jac...@hyperactivesw.com HyperActive Software | http://www.hyperactivesw.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
RE: Reliable way to do something on shutdown?
From: J. Landman Gay Well, on a Mac, closing the last window doesn't shut down the app. The app stays resident and sits there with nothing but its menu bar showing, waiting for you to choose Quit. :) I take that back -- closing the *last* window does shut it down. But it isn't always the last window the user is closing, so we need two messages. Oh bugger, I hope this doesn't mean that it will work differently on a Mac. I don't have a Mac to test it on. -- Ciao, Paul D. DeRocco Paulmailto:pdero...@ix.netcom.com ___ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
