Adding Items to the Header Control
After creating your header control (CHeaderCtrl) in its parent window, add as many "header items" as you need: usually one per column.
To add a header item
Prepare an HD_ITEM structure.
Call CHeaderCtrl::InsertItem, passing the structure.
Repeat steps 1 and 2 for additional items.
For more information, see Adding an Item to a Header Control in the Windows SDK.