RAD Studio VCL Reference
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Controls.TUnDockEvent Type

TUnDockEvent is the type of the OnUnDock event handler.

Pascal
TUnDockEvent = procedure (Sender: TObject; Client: TControl; NewTarget: TWinControl; var Allow: Boolean) of object;
C++
(Sender: TObject; Client: TControl; NewTarget: TWinControl; var Allow: Boolean) ( TUnDockEvent)();

Controls

Sender is the object from which a control is being undocked.  

Client is the control that is being undocked.  

NewTarget is the control to which Client is being docked.  

Allow is whether to allow the undocking. 

 

OnUnDock

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