any trigger in oracle forms to automatically capture data populated to the text item ?

Hi All,

i am working on an enhancement for a RF scanner which is coded using oracle forms,

so when ever a UCC/EAN is scanned the form control should automatically pull the data populated to that text item,

technically speaking when the text item is populated with any data  it should process it automatically (say insert into a table).

is there any trigger available in oracle forms to do so (it looks like POST-CHANGE trigger did not worked).

any suggestions ?

Regards,

Chrisanto.