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

Tells whether the grid control is in multiple sort mode.

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

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