Tim,
1 - CharPtr c is a _pointer_ to a string. It is not pointing to any valid
memory to store data. You must allocate some memory and assign c to point
to that area.
2,3: These functions expect a Record Index not the Unique ID.
> ----------
> From: Timothy Astle[SMTP:[EMAIL PROTECTED]]
> Reply To: Palm Developer Forum
> Sent: Thursday, April 13, 2000 2:24 PM
> To: Palm Developer Forum
> Subject: Bewildered...
>
> CharPtr GetTripTripNumber(UInt UniqueID)
> {
> CharPtr c;
> tblTrip theTrip;
>
> VoidHand record = DmGetRecord(gTripDB, UniqueID);
> tblPackedTripPtr p = MemHandleLock(record);
> UnpackTrip(&theTrip, p);
> StrCopy(c, theTrip.TripNumber);
> MemHandleUnlock(record);
>
> return(c);
> }
>
>
> This function has been causing me much grief :-) Here's what I've
> encountered thus far:
>
> #1 It warns me that I should initialize CharPtr c before using it. (why??)
> #2 When I use DmGetRecord, I get an "Index out of Range" error, requiring
> a
> hard boot
> #3 If I change DmGetRecord to DmQueryRecord, and comment out all the other
> code, I get a different error. (NULL based error, probably due to the
> fact
> I hard coded a NULL for a return value :-)
>
> Now, I've heard something about clearing the busy bit... perhaps this has
> something to do with my problem? I am aware that DmQueryRecord doesn't
> set
> the busy bit...
>
> Tim
>
>
>
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