I have been subscribed to this list for sometime and it has of immense help to me. I thank everyone who participates in this list. This is the first time I am posting a question, one that has me quite perplexed. I recently upgraded from CW6 to CW7 (for Macintosh) and from SDK 3.0 to SDK 3.5. I seem to have ironed out most of the problems resulting from the change except one. My application supports categories, and has worked fine on 3.0 roms. However, when I use 3.5 roms or 4.0 roms, POSE crashes when I tap the category popup trigger. It does not do this in other forms in the application, which implement categories in the exact same way. Nor does it happen when I switch back to 3.0 roms. What is even weirder is that when I put a breakpoint in on a penDownEvent (so I can watch what happens after I tap the category popup trigger), it then allows me to select a category and does not crash. The code is not changed at all, all I have done is put a breakpoint in. However, the second time I tap the popup trigger I get the same crash. Why would setting a breakpoint alter when my application crashes? I should note that when the crash occurs, it never even gets to the point where my application can handle the ctlSelectEvent. It seems to be crashing while the OS is still working through the event handling routines. At the time the time of the crash, the debugger stack looks like this: PilotMain MyApplicationMain AppEventLoop 0x10C697FC (FrmDispatchEvent) 0x10C65E7A (PrvSendEventToForm) 0x10C6AD6E (FrmHandleEvent) 0x10C5B386 (CtlHandleEvent) 0x10C5A8A8 (PrvDrawControl) 0x10C5A8A8 (PrvDrawControl) 0x10C167B4 (StrLen) Specifically, the emulator reports the following error: "MyApplication has just read from memory location 0x00018AD0, which is an unallocated chunk of memory. An 'unallocated chunk of memory' is a chunk of memory that has not been reserved for use by the application through calling MemPtrNew or MemHandleNew. It should not be accessed by applications under any circumstances. Such an access usually means that an application is accessing a chunk that used to be allocated to the application but has since been returned with MemPtrFree or MemHanldeFree." I have been through my code a thousand times and I really don't see any attempt to access memory that has been already freed. The crash is occurring while the OS is converting the penDownEvent into a ctlEnterEvent. And what is really weird is that the crash goes away on the first pen down if there is a breakpoint set. If anyone can give me any ideas, I would be very grateful. Thanks! -Sean Kennedy Eclitpta, Inc. -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/tech/support/forums/
