RE: Passing a Char Array to a field

[Horace Ho]

> This is how I set up text in a field:
>
> static void uiSetText(FormPtr frm, Word fID, CharPtr fData, ULong fSize)
> {
>   Word fldIndex = FrmGetObjectIndex(frm, fID);
>   FieldPtr fld = (FieldPtr) FrmGetObjectPtr(frm, fldIndex);
>   VoidHand fieldHandle = MemHandleNew(fSize);
>   VoidPtr  fieldData = MemHandleLock(fieldHandle);
>   StrCopy((CharPtr) fieldData, fData);
>   MemHandleUnlock(fieldHandle);
>   FldSetTextHandle(fld, (Handle) fieldHandle);
> }
>

Regards
horace

-----Original Message-----
From: Matt Steppuhn [mailto:[EMAIL PROTECTED]]
Sent: 1999 Aug 30 Mon 06:01
To: [EMAIL PROTECTED]
Subject: Passing a Char Array to a field


Hello there Palm Pilot Gurus!

        I am new to Palm Pilot Programming and was wondering if anyone could
point me in the right direction in duplicating the strcpy command to a field
on the
PalmPilot.   I have started a few tidbits below but am unsure on how to
proceed
after I have a handle and pointer.  I sure wish this was treated in a more
Java "TextField"
type of way to free the novice like me of all this
pointer->handle->memory-lock
stuff.  It seems like a lot of trouble to just display a long string of
text.


Thanks for your help in advance!!



                frm=FrmGetActiveForm();

                  Word wIDField = FrmGetObjectIndex (frm, ViewMessagesSubField);
                 FieldPtr pCtlField = (FieldPtr) FrmGetObjectPtr(frm, wIDField);

                 Handle hText = FldSetTextHandle(pCtlField, NULL);

                  CharPtr pText =(CharPtr)MemHandleLock(hText);

                 //Now I want to perform a String copy like function
                 //ie strcpy(vmsfield, sub_field);

                 MemHandleUnlock(hText);
                 FldSetTextHandle(pCtlField, hText);
                 FldDrawField(hText);



Matt Steppuhn
DataTrac Systems
116-3547 Skaha Lake Road
Penticton, B.C.
Canada

ph.(250) 492-5363 Ext. 132
fax (250) 493-9238
e-mail: [EMAIL PROTECTED]
Website: www.datatrac.ca