Hi,
I have developed an application for Palm Handheld
using CW IDE V 4.0.1 and Palm SDK 3.0 .
I downloaded my Application onto my HAndSpring Visor
Prism (color device with Palm OS v 3.5.2H on it).
I dont have any problem with this device.
But when I download the same application onto my other
HandSpring Visor (Black and white device with 2 MB
memory and Palm OS v 3.1H2 on it), I dont have any
problem when I am running the application on this
device too.But when I exit my application,I get Fatal
Error and I have to do
a Soft Reset to exit my application.
I am not sure whether this has anything to do with
different OS version on the device or whether it's my
code problem.
I have included the code for my Stop Application and
also code on how I save my data onto my database.
Does anybody know what's going on here??
static void StopApplication( void )
{
Err err;
CloseCOM();
if(setFont)
FntSetFont(curFont);
FrmCloseAllForms();
err = DmResetRecordStates(drgCtrDB);
DmCloseDatabase(drgCtrDB);
err = DmResetRecordStates(HexDragDB);
err = DmCloseDatabase(HexDragDB);
}
//This is how I save the data.
Boolean exist = false;
Boolean handled =false;
UInt index = 0,numRecords,buttonID;
VoidPtr textPtr;
VoidHand myRecord;
saveDataToDatabase *s,theStructure;
numRecords = DmNumRecords(drgCtrDB);
for(index = 0;index<numRecords ;++ index)
{
myRecord = DmGetRecord(drgCtrDB , index);
s = MemHandleLock(myRecord);
// theStructure = *s;
if(StrCompare(SN,s->serialNo) == 0)
{
exist =true;
buttonID = FrmAlert(RecordExistsAlert);
if(buttonID == RecordExistsYes )
{
//textPtr=MemHandleLock(myRecord);
DmWrite(s,0,&saveRecord,sizeof(saveRecord));
MemHandleUnlock(myRecord);
DmReleaseRecord(drgCtrDB, index, true);
FrmAlert(SavedSuccessAlert);
handled = true;
break;
}
else if(buttonID == RecordExistsNo)
{
handled = true;
MemHandleUnlock(myRecord);
DmReleaseRecord(drgCtrDB, index, false);
break;
}
}
else
{
MemHandleUnlock(myRecord); //MemPtrUnlock(s)??????
DmReleaseRecord(drgCtrDB, index, false);
}
}
if(!exist)
{
index = 0;
myRecord = DmNewRecord(drgCtrDB , &index
,sizeof(saveDataToDatabase));//textHandle contains
actual record index.
//If the allocation failed ,display a warning.
if(!myRecord)
{
FrmAlert(DeviceFullAlert);
return (false);
}
textPtr = MemHandleLock(myRecord);
DmWrite(textPtr,0,&saveRecord,sizeof(saveRecord));
MemHandleUnlock(myRecord);
DmReleaseRecord(drgCtrDB, index, true);
FrmAlert(SavedSuccessAlert);
handled = true;
}
return handled;
}
Thanks in advance for any guidance.
Amritha,
=====
Life would be dull and colourless but for the obstacles that we have to overcome and
the fights that we have to win.
Amritha.
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