BCGControlBar Pro for MFC
BOOL CBCGPListCtrl::IsMultipleSort ( ) const

Determines whether the list control is in multiple sort mode.

Returns
Nonzero if the list control is working in multiple sort mode; otherwise 0.

Determines whether the list control is in multiple sort mode. In this mode the items of the list control are sorted by several columns. You can enable the multiple sort mode using EnableMultipleSort().