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

TBasicAction.Update

Triggers the OnUpdate event

Declaration

Source position: classesh.inc line 1727

public function TBasicAction.Update: Boolean; virtual;

Description

Update triggers the OnUpdate event, if one is assigned. It returns True if the event was triggered, or False if no event was assigned.

Application programmers should never run Update directly. The Update method is called automatically by the action mechanism; Normally this is in the Idle time of an application. An application programmer should assign the OnUpdate event, and perform any checks in that handler.

See also

OnUpdate

  

Event trigged when the application is idle.

Execute

  

Triggers the OnExecute event

UpdateTarget

  

Notify client controls when the action updates itself.

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