To populate the tree control with items, we first call GetTreeCtrl(), then use the InsertItem() function to add items to the tree.
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| Table 3.3 CTreeCtrl Class’s Functions
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| Function
| Does this
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| Create
| Creates a tree view control and attaches it to a CTreeCtrl object.
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| CreateDragImage
| Creates a dragging bitmap for the specified tree view item.
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| CTreeCtrl
| Constructs a CTreeCtrl object.
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| DeleteAllItems
| Deletes all items in a tree view control.
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| DeleteItem
| Deletes a new item in a tree view control.
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| EditLabel
| Edits a specified tree view item in place.
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| EnsureVisible
| Ensures that a tree view item is visible in its tree view control.
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| Expand
| Expands or collapses the child items of the specified tree view item.
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| GetBkColor
| Retrieves the current background color of the control.
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| GetCheck
| Retrieves the check state of a tree control item.
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| GetChildItem
| Retrieves the child of a specified tree view item.
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| GetCount
| Retrieves the number of tree items associated with a tree view control.
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| GetDropHilightItem
| Retrieves the target of a drag-and-drop operation.
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| GetEditControl
| Retrieves the handle of the edit control used to edit the specified tree view item.
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| GetFirstVisibleItem
| Retrieves the first visible item of the specified tree view item.
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| GetImageList
| Retrieves the handle of the image list associated with a tree view control.
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| GetIndent
| Retrieves the offset (in pixels) of a tree view item from its parent.
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| GetInsertMarkColor
| Retrieves the color used to draw the insertion mark for the tree view.
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| GetItem
| Retrieves the attributes of a specified tree view item.
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| GetItemData
| Returns the 32-bit application-specific value associated with an item.
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| GetItemHeight
| Retrieves the current height of the tree view items.
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| GetItemImage
| Retrieves the images associated with an item.
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| GetItemRect
| Retrieves the bounding rectangle of a tree view item.
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| GetItemState
| Returns the state of an item.
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| GetItemText
| Returns the text of an item.
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| GetNextItem
| Retrieves the next tree view item that matches a specified relationship.
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| GetNextSiblingItem
| Retrieves the next sibling of the specified tree view item.
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| GetNextVisibleItem
| Retrieves the next visible item of the specified tree view item.
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| GetParentItem
| Retrieves the parent of the specified tree view item.
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| GetPrevSiblingItem
| Retrieves the previous sibling of the specified tree view item.
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| GetPrevVisibleItem
| Retrieves the previous visible item of the specified tree view item.
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| GetRootItem
| Retrieves the root of the specified tree view item.
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| GetSelectedItem
| Retrieves the currently selected tree view item.
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| GetTextColor
| Retrieves the current text color of the control.
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| GetToolTips
| Retrieves the handle to the child ToolTip control used by a tree view control.
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| GetVisibleCount
| Retrieves the number of visible tree items associated with a tree view control.
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| HitTest
| Returns the current position of the cursor related to the CTreeCtrl object.
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| InsertItem
| Inserts a new item in a tree view control.
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| ItemHasChildren
| Returns nonzero if the specified item has child items.
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| Select
| Selects, scrolls into view, or redraws a specified tree view item.
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| SelectDropTarget
| Redraws the tree item as the target of a drag-and-drop operation.
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| SelectItem
| Selects a specified tree view item.
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| SelectSetFirstVisible
| Selects a specified tree view item as the first visible item.
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| SetBkColor
| Sets the background color of the control.
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| SetCheck
| Sets the check state of a tree control item.
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| SetImageList
| Sets the handle of the image list associated with a tree view control.
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| SetIndent
| Sets the offset (in pixels) of a tree view item from its parent.
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| SetInsertMark
| Sets the insertion mark in a tree view control.
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| SetInsertMarkColor
| Sets the color used to draw the insertion mark for the tree view.
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| SetItem
| Sets the attributes of a specified tree view item.
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| SetItemData
| Sets the 32-bit application-specific value associated with an item.
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| SetItemHeight
| Sets the height of the tree view items.
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| SetItemImage
| Associates images with an item.
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| SetItemState
| Sets the state of an item.
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| SetItemText
| Sets the text of an item.
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| SetTextColor
| Sets the text color of the control.
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| SetToolTips
| Sets a tree view control’s child ToolTip control.
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| SortChildren
| Sorts the children of a given parent item.
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| SortChildrenCB
| Sorts the children of a given parent item using an application-defined sort function.
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