summer@rhea.trl.oz.au (Mark Summerfield - Switching) (01/09/90)
I am trying to make an application MultiFinder aware, and have a couple of questions which are unanswered by any technical note I can lay my hands on. The first has probably been discussed long ago- I'm sorry, but I'm rather new at this. I understand about the SIZE-1 resource, and how to use WaitNextEvent instead of SystemTask, and GetNextEvent, and I believe that MultiFinder uses app4Evt's to return the resume and suspend events to the application. What I need to know is how does it return which sort of event it is (resume, suspend etc)? And are the constants defined in any of the MPW Pascal 3.0 interface files? (I can't find them) If not, what are they? Also, what does the sleep parameter of WaitNextEvent define exactly? Is it the number of ticks until control is passed back to the foreground application (assuming no other important event intervenes)? The next question is perhaps a little more interesting. The application in question is for display purposes, and it is desired to disable the Quit option once it is set up (so that prying hands can't do any harm). I had assumed that this would not cause problems, since Shut Down would force the application to be closed. Apparently, however, MultiFinder attempts to issue a Quit command to the application when you Shut Down, and so fails, since it is not enabled (aarrgghh!!) Can anybody think of a way to solve this problem? Once I've got suspend/resume event handling working, will I be able to re-enable Quit whilst in the background to get round this? I am afraid that what will happen if I try this is that on Shut Down I'll get a resume event, upon which I'll disable Quit, FOLLOWED by the quit command, which I will consequently ignore. Thanks in advance. -- Mark Summerfield Telecom Research Laboratories (Australia) ----------------------------------------------------------------------