TTMSFNCPanel.OnHeaderExpandButtonClick Event
Fires when the user clicks the header expand/collapse button.
API unit family: TMSFNCPanel
Declaring type: TTMSFNCPanel
Inherited from: TTMSFNCCustomPanel
Type: TNotifyEvent
Syntax
property OnHeaderExpandButtonClick: TNotifyEvent;
__property System::Classes::TNotifyEvent OnHeaderExpandButtonClick = {read=FOnHeaderExpandButtonClick, write=FOnHeaderExpandButtonClick};