TCloseEvent procedure type
Type used for an OnClose event handler in a form.
Declaration
TCloseEvent = procedure(Sender: TObject; var CloseAction: TCloseAction)
of objectArguments
Sender | The form that received an Close request. |
CloseAction | Set this to caNone, to prevent the form from closing. |
Description
Closing a form can have several meanings:
- caNone
- Do nothing (don't close).
- caHide
- Hide the form (default for modal forms).
- caFree
- Destroy the form.
- caMinimize
- Minimize the form (MDI child default).
The handler can set CloseAction to the desired value for the action.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.