Table 3. Tree View Item States
  
Item State	Meaning

TVIS_CUT	The item is marked.
TVIS_DISABLED	The item is disabled and is drawn using the standard disabled style and color.
TVIS_DROPHILITED	The item is highlighted as a drag-and-drop target.
TVIS_EXPANDED	The item's list of child items is currently expanded.
TVIS_EXPANDEDONCE	The item's list of child items has been expanded at least once.
TVIS_FOCUSED	The item has the focus and is drawn with the standard focus rectangle.
TVIS_OVERLAYMASK	An overlay image is used as a mask with the item image.
TVIS_SELECTED	The item is selected.
TVIS_USERMASK	A user-defined mask is set. If you set the image to be a state image list, this mask will specify the indexes into the state image list and draw another image next to the normal item image. For example, you can use this state to put a check mark next to a tree view item image.
At any given time, the parent it