Check for the length of the string returned. It should be 0 if no
text was entered. For some reason checking for the empty string never
worked for me.

> if i execute this line of code:
> 
> FldGetTextPtr(FrmGetObjectPtr(frm, FrmGetObjectIndex(frm, objectID)));
> 
> i get the text of a field in my form.  i then convert it to an integer
> using StrAToI().  now if i do this on an empty field, the resulting Long
> turns out to be 0 (zero).  i want to try to catch an empty field for an
> error.  what does an empty field return?  i have tried 0 (zero), NULL,
> and "" (empty string), but it seems to be none of these.  anyone know
> what i should test for?

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