请教： CTreeCtrl中，有没有办法用代码来实现节点的选中与取消

[Ah]

我实现了用代码选中，可是没办法让先前选中的节点取消选中壮态
怎么办？
还有,类似的
怎样调用TreeCtrrl的展开事件

[beni]

CTreeCtrl::SelectItem
BOOL SelectItem( HTREEITEM hItem );

Return Value

Nonzero if successful; otherwise 0.

Parameters

hItem

Handle of a tree item.

Remarks

Call this function to select the given tree view item. If hItem is NULL, then this function selects no item.

[beni]

CTreeCtrl::Expand
BOOL Expand( HTREEITEM hItem, UINT nCode );

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.

[xj_h]

CTreeCtrl::Expand()就是展开，消息是TVE_EXPAND

[xj_h]

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