Code chage

Hi,

Below is a code from the SAP ERP Central Component 5.0 version. I need to get it working for R/3 release 4.6C. Can anyone help me with this?

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DATA area TYPE REF TO zselarea.

area = zselarea=>attach_for_read( ).

DATA t_ranges TYPE ace_field_ranges_t.

t_ranges = area->root->get_fields( ).

area->detach( ).

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Thanks in advance...

Lilan