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

TTVHasChildrenEvent

Specifies an event handler signalled to determine if a given tree node has child nodes.

Declaration

Source position: comctrls.pp line 2942

type TTVHasChildrenEvent = function(

  Sender: TCustomTreeView;

  ANode: TTreeNode

):Boolean of object;

Arguments

Sender

  

Object (TCustomTreeView ) for the event notification.

ANode

  

Tree node examined in the routine.

Function result

True if the specified node has child nodes.

Description

TTVHasChildrenEvent is the type used for the OnHasChildren property in TCustomTreeView.

See also

TCustomTreeView.OnHasChildren

  

Event handler signalled to determine if a given node in the tree view has child nodes.

TTreeNode.HasChildren

  

Indicates whether the tree node has child nodes.

Version 3.2 Generated 2024-02-25 Home