Question

VC++_Tree控件

请问VC++_Tree控件：如何并操作选打对勾的叶子结点？谢谢！

Answer 1

参考msdn CTreeCtrl::SetCheck BOOL SetCheck( HTREEITEM hItem, BOOL fCheck = TRUE ); Return Value Nonzero if successful; otherwise 0. Parameters hItem The HTREEITEM to receive the check state change. fCheck Indicates whether the tree control item is to be checked or unchecked. By default, SetCheck sets the item to be checked. Remarks Call this member function to set the check state for a tree control item. When the tree control item is checked (fCheck set to TRUE), the item appears with an adjacent checkmark. Example // The pointer to my tree control. extern CTreeCtrl* pmyTreeCtrl; UINT i, uCount = pmyTreeCtrl->GetVisibleCount(); HTREEITEM hItem = pmyTreeCtrl->GetFirstVisibleItem(); // Toggle the check state of all the visible items. for (i=0;i < uCount;i++) { ASSERT(hItem != NULL); pmyTreeCtrl->SetCheck(hItem, !pmyTreeCtrl->GetCheck(hItem)); hItem = pmyTreeCtrl->GetNextVisibleItem(hItem); }