TdxCustomDockControl.OnVisibleChanging Event

Fires before the visibility of the dock control is changed.

Declaration

property OnVisibleChanging: TdxDockControlNotifyEvent read; write;

Remarks

Handle the OnVisibleChanging event if you need to perform specific actions before the dock control is hidden or made visible. The control whose visible state is changed is returned by the Sender parameter of the event.

If you need to perform any actions immediately after the control’s visibility has been changed, handle the OnVisibleChanged event. Please refer to this event’s description for details on how the visibility of dock controls can be changed.