Hi Dan
I open the address database and fill in a local structure with a
subset of information from the address fields, I then close the database
and only work with this internal structure. However, I would like the
string of the category selected from the address book to maintain itself
throughout the app until its changed. I think in this situation the
problem is different. Maybe I cannot use categoryselect with a databse
and then close it?
Cheers
Jeff
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dan
Phelan
Sent: 16 April 2004 20:46
To: Palm Developer Forum
Subject: Re: CategorySelect Issue
Jeff,
Yes, you need to do a couple of things:
1) Define an AppInfo structure. (see below)
2) When your Dbase is loaded or first created, initialize the
Categories. (see InitAppInfo )
Then the dbase header info is ready for CategorySelect().
Hope this helps.
Dan
**************
SAMPLE ...
**************
/***********************************************************************
****
***
*
* myApp Info information Data Structures
*
* First Made for categopry support on viewing association records
************************************************************************
****
*/
typedef struct
{
UInt16 renamedCategories;
Char categoryLabels[dmRecNumCategories][dmCategoryLength];
UInt8 categoryUniqueIDs[dmRecNumCategories];
UInt8 lastUniqID;
UInt8 reserved1;
} myAppInfo;
/***********************************************************************
****
******
*
* InitAppInfo:
*
* Initializes the App Info portion of the database header, and sets
the
category
* area
*
* INPUTS: pDB = ptr to MY db, Called after the DB is loaded or created
*
************************************************************************
****
*******/
Err
InitAppInfo (DmOpenRef pDB)
{
UInt16 cardNo;
MemHandle handle;
LocalID dbID;
LocalID appInfoID;
myAppInfo * pAppInfo; // Need to define a structure, see above
myAppInfo * pNull = 0;
Boolean bSetUpCategories = false;
//Version Information
UInt16 version =1;
//UInt8 *majorMinor;
//majorMinor = (UInt8 *) &version;
//majorMinor[0] = 1;
//majorMinor[1] = 1;
if ( DmOpenDatabaseInfo ( pDB, &dbID, NULL, NULL, &cardNo, NULL ))
{
return dmErrInvalidParam;
}
if ( DmDatabaseInfo ( cardNo, dbID,
NULL,
NULL,
&version,
NULL,
NULL,
NULL,
NULL,
&appInfoID,
NULL,
NULL,
NULL ))
{
return dmErrInvalidParam;
}
//AppInfo Block not setup if NULL
if ( NULL == appInfoID )
{
handle = DmNewHandle ( pDB, sizeof (myAppInfo) );
if ( NULL == handle )
{
return dmErrMemError;
}
appInfoID = MemHandleToLocalID ( handle );
DmSetDatabaseInfo ( cardNo, dbID,
NULL,
NULL,
&version,
NULL,
NULL,
NULL,
NULL,
&appInfoID,
NULL,
NULL,
NULL );
pAppInfo = (myAppInfo *)MemLocalIDToLockedPtr ( appInfoID, cardNo
);
DmSet(pAppInfo, 0, sizeof ( myAppInfo ), 0 );
CategoryInitialize ( (AppInfoPtr)pAppInfo, CategoriesAppInfoStr );
MemPtrUnlock ( pAppInfo );
}
return 0;
}
----- Original Message -----
From: "Jeff Leal" <[EMAIL PROTECTED]>
To: "Palm Developer Forum" <[EMAIL PROTECTED]>
Sent: Friday, April 16, 2004 3:14 PM
Subject: RE: CategorySelect Issue
> Dan,
>
> As I understand it, if I use CategorySelect() I do not need to call
> CategoryInitialize(). Is this correct?
>
> Jeff
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Dan
> Phelan
> Sent: 16 April 2004 19:54
> To: Palm Developer Forum
> Subject: Re: CategorySelect Issue
>
>
> Jeff,
>
> I have had that happen when the CategoryInitialize() was not setup
> when the database was created. Or, a newer application is loaded over
> an existing one, and the old dbase structure was not set for
> categories.
>
> Dan
>
> ----- Original Message -----
> From: "Jeff Leal" <[EMAIL PROTECTED]>
> To: "Palm Developer Forum" <[EMAIL PROTECTED]>
> Sent: Friday, April 16, 2004 2:46 PM
> Subject: CategorySelect Issue
>
>
> > Hi
> >
> > I've managed to get CategorySelect working, however everytime I
> > update
>
> > the display the selected category string gets filled with rubish. It
> > seems like I am writing to some wrong address but I've disabled all
> > writing and I still get this efect.....anyone know the answer?
> >
> > Cheers
> > Jeff
> >
> >
> > --
> > For information on using the Palm Developer Forums, or to
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> please see http://www.palmos.com/dev/support/forums/
>
>
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