BCGControlBar Pro for MFC
BOOL CBCGPPlannerManagerCtrl::IsCompressWeekend ( BCGP_PLANNER_TYPE  view = (BCGP_PLANNER_TYPE)-1) const

Tells whether the Planner Control displays weekends in the monthly view in one, or two columns.

Returns
TRUE, if weekends are displayed in one column; FALSE, if weekends are displayed in two columns.

This flag is valid only for BCGP_PLANNER_TYPE_MONTH view.