CTreeCtrl::Expand

  • 项目

BOOLExpand(HTREEITEMhItem**,UINTnCode);**

Return Value

Nonzero if successful; otherwise 0.

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.

  • TVE_EXPAND   Expands the list.

  • TVE_TOGGLE   Collapses the list if it is currently expanded or expands it if it is currently collapsed.

Remarks

Call this function to expand or collapse the list of child items, if any, associated with the given parent item.

Example

See the example for CTreeCtrl::EnsureVisible.

CTreeCtrl Overview |  Class Members |  Hierarchy Chart

See Also   CTreeCtrl::EnsureVisible