At 11:05 2001/03/22 -0800, you wrote:
>Well, it's unclear exactly what you mean by "until the user
>selects/highlights a text cell for the SECOND time". Does that mean that if
>the user just taps twice in succession on the same cell, you see the error?
>Or that the user taps on one cell, then on a different cell, then back to
>the first cell and then you see the error?
The second of the three options, if you'll pardon the pun. User selects one
text cell, then another, then back to the first. Then the error occurs.
The error also occurs if you leave the form and reenter the form within one
application execution (note that the snippet I posted does not have this
capability - it's a bare-bones program to try to isolate the problem).
Selecting any of the text cells that were selected the first time the form
was displayed immediately cause the error.
I also notice that when emulating with a IIIc debug rom, the selected rows
appear to have a pink background, rather than white, after they have been
selected and then another cell is selected - i.e., the backgound is a
different colour after the highlighting goes away. I'm not sure what this
signifies.
>comment out the call to FldSetSelection to see of that makes the error go
>away.
I have tried this, but it has no effect. The problem was occurring before I
added this line.
It seems that the OS is somehow trying to modify the text contained in the
memory allocated for the handles, but as far as I can tell, it should not.
But even if it did, there is plenty of room allocated for the text and
null-terminator. The handles all appear to be valid, even when the errors
are occurring.
I guess the problem is that I don't understand the error message - "Invalid
length" is not terribly illuminating. As I said, there should be lots of
room in the memory chunk for the text I am placing there (and not, I think,
changing in any way). Yet, if I select "Continue" on the Emulator's error
dialog, I get "Memory reallocation error". As far as I can tell, no
reallocation is required!
Any ideas? I have not reposted the code snippet.
Cheers, Erik
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