Hi everybody,
I read PRC file or PBD file from my device that connects to Palm thru the serial port,
put the
data in a file stream.
Before, I use the data manager functions create the database in Palm it works fine. I
think I can
not use DmCreateDatabaseFromImage() because the database is to big (>64K) to fit in a
buffer.
Now, I try to use ExgDBRead() to read data from a file stream to create a database in
Palm and I
always get err = 259 (MemErrInvalidParam) return from ExgDBRead(). Please check for me
to see what
I did wrong. For now, I delete the old DB before calling exgDBRead(), I do not use the
DeleteOldDB() call back function yet.
Thank you so much for any helps or suggestions on how to do this.
Tnn
// global variable
UIn32 totalBytesRead = 0;
/***********************************************************************/
/* FUNCTION: ReadFromFile */
/* */
/* DESCRIPTION: Call back function for exchange manager function */
/* ExgDBRead to read data from file streaming, put in RAM */
/* */
/* PARAMETERS: dataP - bufffer containing data to put in file */
/* sizeP - number of bytes to put in file */
/* userDataP - application defined buffer for context */
/* (holds exgSocket when using ExgManager */
/* */
/* RETURNED: non_zero if error */
/* */
/* REVISION HISTORY: */
/* */
/***********************************************************************/
static Err ReadFromFile(void* dataP, UInt32* sizeP, void* userDataP)
{
Err err = 0;
if (totalBytesRead) {
if (*sizeP > totalBytesRead)
*sizeP = totalBytesRead;
FileRead((FileHand)userDataP, (void *)dataP,(Int32) *sizeP, 1,&err);
ErrFatalDisplayIf(err," FileRead() error");
totalBytesRead -= *sizeP;
}
return (err);
}
Err CopyDBToPalm(FileHand fileH,UInt32 size, Int16 whichCard)
{
Err err;
LocalID dbID;
//...
// delete the old db if there is one.
totalBytesRead = size;
err = ExgDBRead(ReadFromFile, DeleteOldDB,(void *)fileH, &dbID, (UInt16)whichCard,
false,
true);
// err = 259 return from ExgDBRead()
totalBytesRead = 0;
//...
//...
return (err);
}
__________________________________________________
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail - only $35
a year! http://personal.mail.yahoo.com/
--
For information on using the Palm Developer Forums, or to unsubscribe, please see
http://www.palmos.com/dev/tech/support/forums/
