On Mon, 20 Aug 2001, Borislav Kolev wrote:
> I would think that the program will crash on the emulator even without the
> patch. Have you tried that at all?
>
> To the best of my knowledge, there is nothing in PalmOS that could
> distinguish patched from non-patched file; that is, there is no binary
> checksum of the databases that you have to be aware of. But don't take my
> word for it, I am not certified developer ;-)))
i can tell you for sure it is possible to dynamically change the
prc :) so, patching is possible :) been there, done that. you
just cannot patch a program thats in rom :)
dont need to go into the specifics tho :)
> A possible scenario for the crash would be that you are changing some
> graphical controls (as in an on-screen keyboard layout) and some of these
> have width/height of zero.
>
> It is much more likely to explain what you see with the slight difference of
> the OS internals among different versions and the nature of the program
> being patched (basically, it would perform as a hack as there is no other
> way for it to operate).
its probably important to know exactly what the app is patching
- it may be doing as bobby says :) screwing up a UI resource
and the os is going crazy over it.
// az
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