TPageControl.DockOver

protected procedure TPageControl.DockOver(

  Source: TDragDockObject;

  X: Integer;

  Y: Integer;

  State: TDragState;

  var Accept: Boolean

); override;

Source

Object with the display rectangle and alignment for the hover notification.

X

Horizontal coordinate for the dockable object.

Y

Vertical coordinate for the dockable object.

State

Indicates whether the object is entering, moving, or leaving the dock site.

Accept

Returns True if the object can be docked.

TWinControl.DockOver

Called to check whether this control allows docking and where.