Clearing a SysTreeView32 dialog control

[ssimop]

I am in need to clear a SysTreeView32 control in a dialog. I experienced that I can do it using statement :

SendMessage htv TVM_DELETEITEM TVE_EXPAND 0

where htv the dialog control

I wonder whether this is correct or whether there exists another way to do it.

Many thanks in advance.

[Gintaras]

TVM_DELETEITEM with wParam=0 and lParam=0 deletes all items.