Palm Programming
by Neil Rhodes and Julie McKeehan

Following are the changes made in the 12/00 reprint.


Here's the key to the markup:

        [page-number]: serious technical mistake
        {page-number}: minor technical mistake
        <page-number>: important language/formatting problem
        (page-number): language change or minor formatting problem
        ?page-number?: reader question or request for clarification


{117}
You shouldn't draw in a field until the form has been drawn.

static FieldPtr SetFieldTextFromHandle(Word fieldID, Handle txtH)

has been changed to:

static FieldPtr SetFieldTextFromHandle(Word fieldID, Handle txtH, Boolean
redraw)

and:

     FldDrawField(fldP);

has been changed to:

     if (redraw)
         FldDrawField(fldP);


{118}
Same rationale as the change to p. 117.

static FieldPtr SetFieldTextFromStr(Word fieldID, CharPtr strP)

has been changed to:

static FieldPtr SetFieldTextFromStr(Word fieldID, CharPtr strP, Boolean
redraw)

and:

return SetFieldTextFromHandle(fieldID, txtH)

has been changed to:

return SetFieldTextFromHandle(fieldID, txtH, redraw)

and:

static void ClearFieldText(Word fieldID)
{
     SetFieldTextFromHandle(fieldID, NULL);
}

has been changed to:

static void ClearFieldText(Word fieldID, Boolean redraw)
{
     SetFieldTextFromHandle(fieldID, NULL, redraw);
}


{129}
Same rationale.

    SetFieldTextFromStr(CustomerNameField,    (CharPtr) theCustomer.name);
    SetFieldTextFromStr(CustomerAddressField,
     (CharPtr) theCustomer.address);
    SetFieldTextFromStr(CustomerCityField,    (CharPtr) theCustomer.city);
    SetFieldTextFromStr(CustomerPhoneField,   (CharPtr) theCustomer.phone);

has been changed to:

    SetFieldTextFromStr(CustomerNameField,    (CharPtr) theCustomer.name,
true);
    SetFieldTextFromStr(CustomerAddressField,
     (CharPtr) theCustomer.address, true);
    SetFieldTextFromStr(CustomerCityField,    (CharPtr) theCustomer.city,
true);
    SetFieldTextFromStr(CustomerPhoneField,   (CharPtr) theCustomer.phone,
true);


{131}
Same:

    SetFieldTextFromStr(ItemQuantityField, quantityString);

has been changed to:

    SetFieldTextFromStr(ItemQuantityField, quantityString, false);


{265}
Buffer can overflow depending on the LAT/LON.

char s[10];

has been changed to:

char s[11];


(266)
The following comment was wrong:

// 5 is E or W for Lat direction, 6 is lon

has been changed to:

// 6 is E or W for Lon direction, 5 is lon


[409]
Figure 13-2 had a line from CSynchronizer to CPcMgr. It has been removed
as CSynchronizer does not inherit from anything.