Checkbox in Module Pool Programming

Hi,

I got a situation. I need to handle the checkboxes, which are the internal table fields.

I need to check them, when I click the push button.

Using the event sy-ucomm, I tried to do. But, normally in a screen, we use to check the checkbox, whereas here I need to check them with the push button.

Kindly, guys help me out.

Thanks.