Adds or inserts the specified OnVisibleChanging event handler.
Source position: controls.pp line 1741
public procedure TControl.AddHandlerOnVisibleChanging( |
const OnVisibleChangingEvent: TNotifyEvent; |
AsFirst: Boolean = False |
); |
OnVisibleChangingEvent |
|
TNotifyEvent handler routine added in the method. |
AsFirst |
|
True if the routine is inserted as the first handler in the list of handlers for the chtOnVisibleChanging type. False if the routine is appended to the list. |
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