TVM_SELECTITEM Overview  Group

The TVM_SELECTITEM message selects the specified tree-view item, scrolls the item into view, or redraws the item in the style used to indicate the target of a drag-and-drop operation. You can send this message explicitly or by using the TreeView_Select, TreeView_SelectItem, or TreeView_SelectDropTarget macro.

TV_SELECTITEM 

wParam = (WPARAM) flag; 

lParam = (LPARAM) (HTREEITEM) hitem; 

 

Parameters

flag

Action flag. This parameter can be one of the following values:

Value	Meaning
TVGN_CARET	Sets the selection to the specified item. The tree-view control’s parent window receives the TVN_SELCHANGING and TVN_SELCHANGED notification messages.
TVGN_DROPHILITE	Redraws the specified item in the style used to indicate the target of a drag and drop operation.
TVGN_FIRSTVISIBLE	Ensures that the specified item is visible, and if possible, displays it at the top of the control’s window. Tree-view controls display as many items as will fit in the window. If the specified item is near the bottom of the control’s hierarchy of items, it might not become the first visible item, depending on how many items fit in the window.

hitem

Handle to an item. If hitem is NULL, the selection is removed from the currently selected item, if any.

Return Values

Returns TRUE if successful or FALSE otherwise.

Remarks

If the specified item is the child of a collapsed parent item, the parent’s list of child items is expanded to reveal the specified item. In this case, the control’s parent window receives the TVN_ITEMEXPANDING and TVN_ITEMEXPANDED notification messages.

Using the TreeView_SelectItem macro is equivalent to sending the TVM_SELECTITEM message with flag set to the TVGN_CARET value. Using the TreeView_SelectDropTarget macro is equivalent to sending the TVM_SELECTITEM message with flag set to the TVGN_DROPHILITE value. Using TreeView_SelectSetFirstVisible is equivalent to sending the TVM_SELECTITEM message with flag set to the TVGN_FIRSTVISIBLE value.

See Also

TreeView_Select, TreeView_SelectItem, or TreeView_SelectDropTarget, TVN_ITEMEXPANDED, TVN_ITEMEXPANDING, TVN_SELCHANGED, TVN_SELCHANGING