An item's state determines its appearance and functionality. It can be zero, or one or more of the following values.
| TVIS_BOLD | The item is bold. |
| TVIS_CUT | The item is selected as part of a cut and paste operation. |
| TVIS_DROPHILITED | The item is selected as a drag and drop target. |
| TVIS_EXPANDED | The item's list of child items is currently expanded; that is, the child items are visible. This value applies only to parent items. |
| TVIS_EXPANDEDONCE | The item's list of child items has been expanded at least once. The TVN_ITEMEXPANDING and TVN_ITEMEXPANDED notification messages are not sent for parent items that have specified this value. This value applies only to parent items. |
| TVIS_OVERLAYMASK | The item's overlay image is included when the item is drawn. The index of the overlay image must be specified in the state member of the TV_ITEM structure by using the INDEXTOOVERLAYMASK macro. The overlay image must be added to the tree view's image list by using the ImageList_SetOverlayImage function. This value should not be combined with any other value. |
| TVIS_SELECTED | The item is selected. The appearance of a selected item depends on whether it has the focus and on whether the system colors are used for selection. |
| TVIS_STATEIMAGEMASK | The item's state image is included when the item is drawn. The index of the state image must be specified in the state member of the TV_ITEM structure by using theINDEXTOSTATEIMAGEMASK macro. This value should not be combined with any other value. |
| TVIS_USERMASK | Same as TVIS_STATEIMAGEMASK. |