TAcceptValueEvent procedure type
Specifies an event handler signalled when a calculator dialog has been used to accept or reject a value.
Declaration
TAcceptValueEvent = procedure(Sender: TObject; var AValue: Double;
var Accept: Boolean) of objectArguments
Sender | Object instance (TCalcEdit) for the event notification. |
AValue | Double type with the value returned from the dialog for a calculator dialog. |
Accept | Returns True if the OK button was used to accept the value on the dialog. Otherwise, the return value is False. |
Description
TAcceptValueEvent is the type used for the OnAcceptValue property
in TCalcEdit. Implement and assign a routine using the signature for the
event handler to respond to selection of a value using a calculator dialog.
Use the AValue and Accept variable arguments to determine the value and
action returned from the dialog instance.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.