Unit 'ComCtrls' Package
[Overview][Constants][Types][Classes][Procedures and functions][Index] [#lcl]

TUDChangingEventEx

Specifies an event handler signalled with additional information when the value for a TUpDown control is about to change.

Declaration

Source position: comctrls.pp line 1883

type TUDChangingEventEx = procedure(

  Sender: TObject;

  var AllowChange: Boolean;

  NewValue: SmallInt;

  Direction: TUpDownDirection

) of object;