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TTVChangingEvent procedure type

In unit ComCtrls

Specifies an event handler signalled when a tree node is about to be changed.

Declaration

pascal
TTVChangingEvent = procedure(Sender: TObject; Node: TTreeNode; 
 var AllowChange: Boolean) of object

Arguments

Sender

Object for the event notification.

Node
AllowChange

Description

TTVChangingEvent is an object procedure type which specifies an event handler signalled when a tree node is about to be changed. TTVChangingEvent is the type used to implement the TCustomTreeView.OnChanging property.

See also

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.