Tab reordering is available for all tab styles, as long as there is only one row of tabs. The user can move the position of a tab by pressing the mouse button, dragging the tab to another position and releasing the mouse button.
Tab reordering is enabled by setting the SFTTABS_CONTROL fReorder member to TRUE.
The application must implement the SFTTABSN_DRAGDROP notification and move the tab based on the information returned by GetDragInfo.
See SFTTABS_CONTROL, fReorder member