RAD Studio VCL Reference
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Returns the edge on which another control should be docked when it is dragged over the control.
function GetDockEdge(MousePos: TPoint): TAlign; dynamic;
__fastcall TAlign GetDockEdge(TPoint MousePos);
Use GetDockEdge to get the edge on which another control should be docked when it is dragged over the control.
MousePos is the position of the mouse.
GetDockEdge is called automatically during drag-and-dock operations involving the control.
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