SEC_TREECLASS::Expand

BOOLSEC_TREECLASS::Expand(HTREEITEMhtiExpand, UINTnCode, BOOLbRedraw, BOOLbForceExpand)

Expands or collapses the list of child items, if any, associated with the given parent item.

Defined in: trcore.inl

Return Value

Nonzero if successful; otherwise 0.

Parameters

htiExpand

Handle of the tree item being expanded.

nCode

A flag indicating the type of action to be taken. This flag can be 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.

bRedraw

Flag indicating whether to redraw the item; default is TRUE.

bForceExpand

Ignore any optimizations and force an expand action

Comments

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