CTreeCtrl::Expand
Call this function to expand or collapse the list of child items, if any, associated with the given parent item.
BOOL Expand(
HTREEITEM hItem,
UINT nCode
);
Parameters
hItem
Handle of the tree item being expanded.nCode
A flag indicating the type of action to be taken. This flag can have one of the following values:TVE_COLLAPSE Collapses the list.
TVE_COLLAPSERESET Collapses the list and removes the child items. The TVIS_EXPANDEDONCE state flag is reset. This flag must be used with the TVE_COLLAPSE flag.
TVE_EXPAND Expands the list.
TVE_TOGGLE Collapses the list if it is currently expanded or expands it if it is currently collapsed.
Return Value
Nonzero if successful; otherwise 0.
Example
See the example for CTreeCtrl::EnsureVisible.
Requirements
Header: afxcmn.h