Vcl.AppEvnts.TCustomApplicationEvents.OnHint
Delphi
property OnHint: TNotifyEvent read FOnHint write FOnHint;
C++
__property System::Classes::TNotifyEvent OnHint = {read=FOnHint, write=FOnHint};
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| event | protected | Vcl.AppEvnts.pas Vcl.AppEvnts.hpp |
Vcl.AppEvnts | TCustomApplicationEvents |
Description
Occurs when the mouse pointer moves over a control or menu item that can display a Help Hint.
Write an OnHint event handler to perform special processing when the mouse pauses over a control or menu item whose Hint property is not an empty string (' "" ').
A common use of the OnHint event is to display the value of a control or menu item's Hint property as the text of a status bar (TStatusBar). The Hint property of a control can specify both a short Help Hint and a (usually) longer hint that appears elsewhere because of code in an OnHint event handler.
Note: Call the CancelDispatch method from an OnHint event handler to prevent the application from forwarding the event to any other application events objects.
Tip: Component writers can respond to the automatically-fired THintAction action in a component's ExecuteAction method rather than relying on an OnHint event handler.
OnHint is an event handler of type TNotifyEvent.
See Also
Code Examples