gtk-list-store-insert (store position)

store -- a gtk-list-store object
position -- an integer with the position to insert the new row

A gtk-tree-iter iterator of the new row.

Creates a new row at position. The returned iterator will point to this new row. If position is larger than the number of rows on the list, then the new row will be appended to the list. The row will be empty after this function is called. To fill in values, you need to call the functions gtk-list-store-set or gtk-list-store-set-value.