The TVM_ENSUREVISIBLE message ensures that a tree-view item is visible, expanding the parent item or scrolling the tree-view control, if necessary. You can send this message explicitly or by using the TreeView_EnsureVisible macro.
TVM_ENSUREVISIBLE
wParam = 0;
lParam = (LPARAM) (HTREEITEM) hitem;
Parameters
hitem
Handle to the item.
Return Values
Returns TRUE if the system scrolled the items in the tree-view control to ensure that the specified item is visible. Otherwise, the message returns FALSE.
Remarks
If the TVM_ENSUREVISIBLE message expands the parent item, the parent window receives the TVN_ITEMEXPANDING and TVN_ITEMEXPANDED notification messages.
See Also