Kieth,
I guess it will.
I had checked the SDK 4.0 reference and didn't see it, I didn't realise that
all of the functions are not listed int the Bookmarks list in Acrobat. I'll
read more carefully next time.
Thanks
Richard
----- Original Message -----
From: "Keith Rollin" <[EMAIL PROTECTED]>
To: "Palm Developer Forum" <[EMAIL PROTECTED]>
Sent: Thursday, February 28, 2002 4:24 PM
Subject: Re: Fw: Problem with LstGetTopItem
> LstGlueGetTopItem should do the checking and retrieving for you, shouldn't
it?
>
> -- Keith
>
> At 4:27 PM -0600 2/28/02, Richard Bell wrote:
> >Ok I got my function to work by defining
ALLOW_ACCESS_TO_INTERNALS_OF_LISTS
> >before including the Palmos headers. I'd still like someone to tell me
if
> >there is a better/safer way to do this. I want to maintain compatability
> >with future Palm OS releases.
> >
> >Thanks again.
> >Richard
> >
> >----- Original Message -----
> >From: "Richard Bell" <[EMAIL PROTECTED]>
> >To: "Palm Developer Forum" <[EMAIL PROTECTED]>
> >Sent: Thursday, February 28, 2002 4:16 PM
> >Subject: Problem with LstGetTopItem
> >
> >
> >> I'm using SDK 4.0 and made use of the call LstGetTopItem so I can
store
> >the
> >> top item of a list. The call works fine if I'm using an OS 4.0 or
higher
> >> device but fails on an OS 3.5 device. I attempted to create a
function
> >that
> >> would detect the version and use the older method but it will not
compile.
> >> I recieve the error:
> >>
> >> Error: illegal use of incomplete struct/union/class 'ListType'
> >>
> >> I've seen that error reported before here in the forum and know its
> >related
> >> to me attempting to access the internals of a structure. I'll be
happy
> >not
> >> to do it if someone can tell me how to generate a prc that will work
on my
> >> 3.5 devices as well as my 4.0.
> >>
> >> And if I'm just doing something really stupid, I'm happy to accept
that
> >too.
> >>
> >> Here is my attempt at a function to get around the problem:
> >>
> >> Int16 MyLstGetTopItem(const FormType *frmP, UInt16 objIndex)
> >> {
> >> Int16 ret;
> >> Int32 requiredVersion;
> >> UInt32 romVersion;
> >>
> >> // we can only use LstGetTopItem if the os is 4.0 or better
> >> requiredVersion = sysMakeROMVersion(4,0,0,sysROMStageRelease,0);
> >>
> >> FtrGet(sysFtrCreator, sysFtrNumROMVersion, &romVersion);
> >>
> >> if (romVersion < requiredVersion)
> >> { // we have to do it the hard way
> >> // and access the internal structures
> >> #undef DO_NOT_ALLOW_ACCESS_TO_INTERNALS_OF_STRUCTS
> >> ListType *pLst;
> >> pLst = (ListType *)FrmGetObjectPtr (frmP, objIndex);
> >> ret = pLst->topItem;
> >> #define DO_NOT_ALLOW_ACCESS_TO_INTERNALS_OF_STRUCTS
> >> }
> >> else
> >> {
> >> ret = LstGetTopItem ((ListType *)FrmGetObjectPtr(frmP, objIndex));
> >> }
> >>
> >> return ret;
> >> }
> >>
> >>
> >> --
> >> For information on using the Palm Developer Forums, or to unsubscribe,
> >please see http://www.palmos.com/dev/tech/support/forums/
> >>
> >
> >
> >--
> >For information on using the Palm Developer Forums, or to
> >unsubscribe, please see
> >http://www.palmos.com/dev/tech/support/forums/
>
>
> --
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please see http://www.palmos.com/dev/tech/support/forums/
>
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