You can do along the following two methods:
a. Check your enviroment of the CW7.
b. Check your form and fields in your constructor.
Perhaps your field type is wrong.
> Hi Friends...
> I have already posted a version of my problem in the forum. This time i want
> to make it more clear..
> I am trying to migrate an application from PalmOS 3.1 to Palm OS 3.5.
> Application and code work fine with 3.1 but when i try to debug it using
> palm OS 3.5 and CodeWarrior 7 (I have made all the changes required to
> compile the code on OS 3.5).
> Now when i run the .prc on PalmVx i get the login screen(first form) and
> after 2 seconds the application crashes...
> And when i debug on the emulator(palmos35-en-ezdbg) i get "Bad chunk header"
> error in the code below at
> FrmSetFocus(frm, FrmGetObjectIndex(frm,
> DataCollectorLoginPasswordFieldField));
> I think this has got something to do with the MemHandlelock and unlock.. But
> i have no clue as to how to deal with "Bad chunk header" error. And i have
> already spent 3 days working on this...
>
> Hope someone can help me with this.
> Thanks
> Praveen
>
>
> static Boolean LoginFormHandleEvent(EventPtr event)
> {
>
> Boolean handled = false, checkPass=false;
> EventType newEvent;
> FormPtr frm;
> int i=0;
> Word fldIndex1, fldIndex2;
> FieldPtr fld1, fld2;
> CharPtr textID;
> CharPtr textPass=NULL;
> CharPtr title;
>
> VoidHand recordH;
> SiteDeptRecordTypePtr recordP;
> Word pindex;
>
> switch (event->eType)
>
> {
> case nilEvent:
> LoginFormUpdateTime ();
> LoginFormUpdateDate ();
> handled= true; // handled
> break;
>
> case ctlSelectEvent:
> switch (event->data.ctlEnter.controlID)
>
> {
> case frmOpenEvent:
>
> FrmDrawForm(FrmGetActiveForm());
> LoginFormForceDrawForm ();
>
> //The following code is to display the site and department
> //at login screen kind stuff
>
> recordH = DmQueryRecord(SiteDB, 0);
> recordP =(SiteDeptRecordTypePtr)MemHandleLock(recordH);
>
> StrCopy(title, recordP->siteLookup);
> StrCat(title, " ");
> StrCat(title, recordP->deptLookup);
>
> FrmSetTitle(frm, title);
>
> MemHandleUnlock(recordH);
> /*The code section which comment out displays "Hello (:-" + PalmPilot's user
> */
>
> if(focus!=0)
> {
> FrmSetFocus(frm, FrmGetObjectIndex(frm,
> DataCollectorLoginPasswordFieldField));
> }
> else
> {
> pindex=FrmGetObjectIndex(frm, DataCollectorLoginIDFieldField);
> FrmSetFocus(frm, pindex);
> }
> handled=true;
> break;
>
> case frmCloseEvent:
> frm=FrmGetActiveForm();
> focus=0;
> // PreviousView=DataCollectorLoginForm;
> break;
> }
> return(handled);
> }
>
>
>
> --
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>http://www.palmos.com/dev/tech/support/forums/
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