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

TCustomForm.OnCloseQuery

Handler called before the form is closed. It can reject an close request.

Declaration

Source position: forms.pp line 669

public property TCustomForm.OnCloseQuery : TCloseQueryEvent
  read FOnCloseQuery
  write FOnCloseQuery
  stored IsForm;

Description

An OnCloseQuery handler can check for unsaved information, ask the user whether it's okay to save or discard changes, or simply reject the close request.