TVM_ENSUREVISIBLE


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TVM_ENSUREVISIBLE
TVM_ENSUREVISIBLE 
    wParam = 0; 
    lParam = (LPARAM) (HTREEITEM) hitem; 
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.
Returns nonzero if the system scrolled the items in the tree view control and no items were expanded. Otherwise, the message returns zero.

hitem
Handle to the item.

If the TVM_ENSUREVISIBLE message expands the parent item, the parent window receives the TVN_ITEMEXPANDING and TVN_ITEMEXPANDED notification messages.

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