TWinControl.DockSite property
Allows controls to be drag-and-dock-ed into this control.
Declaration
property DockSite: Boolean read FDockSite write SetDockSite default False;Description
A DockSite reacts on controls dragged over this control, signals acceptance and where a dragged control would be dropped.
A DockSite should initially be empty, not containing any child controls.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.