void CBCGPGanttItem::SetGroupItem | ( | BOOL | bGroup = TRUE | ) |
Sets an item to be a group item.
Use this function to define an item as a group item. This is required to define an hierarchy of items, when a group item represents an interval that covers all sub items.
A sub-item's offset within the hierarchy is defined by a "hierarchy level". The hierarchy level for a group item is 0.
bGroup | Specifies whether an item is a group item (TRUE) , or not (FALSE). |