[Overview][Constants][Types][Classes][Procedures and functions][Index] | Reference for unit 'ComCtrls' (#lcl)

# TTreeViewExpandSignType

Represents symbols types used for expanded or collapsed tree nodes.

## Declaration

Source position: comctrls.pp line 3367

`type TTreeViewExpandSignType = (`
`tvestTheme,` |  | Uses the mechanism provided by Theme Services.
`tvestPlusMinus,` |  | Uses a Plus or Minus sign.
`tvestArrow,` |  | Uses an unfilled Arrow.
`tvestArrowFill,` |  | Uses a filled Arrow.
`tvestAngleBracket` |  | Uses chevrons (angle brackets)('>' and 'v') symbols.
`);`

## Description

TTreeViewExpandSignType is an enumerated type which specifies the symbol displayed in a Treeview to denote the expanded or collapsed state for a given tree node. TTreeViewExpandSignType is the type used to implement the TCustomTreeView.ExpandSignType property.

## See also

TCustomTreeView.ExpandSignType |  | Sets the drawing style for the expand / collapse (fold/unfold) indicators for tree nodes.