TVM_SELECTITEM 21Z3SS

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_Select1IXHYS_, TreeView_SelectItemCPB4JU, or TreeView_SelectDropTarget2SZG4I 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 given item.
TVGN_DROPHILITE	Redraws the given item in the style used to indicate the target of a drag and drop operation.
TVGN_FIRSTVISIBLE	Scrolls the tree view vertically so that the given item is the first visible item.

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 TVGN_CARET value is specified, the parent window receives the TVN_SELCHANGING4Q4FGW and TVN_SELCHANGEDLKSRZ6 notification messages. Also, 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 parent window receives the TVN_ITEMEXPANDINGL92XTR and TVN_ITEMEXPANDED1AC8IWC 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.