Vcl.Controls.TControl.ParentToClient
Delphi
function ParentToClient(const Point: TPoint; AParent: TWinControl = nil): TPoint;
C++
System::Types::TPoint __fastcall ParentToClient(const System::Types::TPoint &Point, TWinControl* AParent = (TWinControl*)(0x0));
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | Vcl.Controls.pas Vcl.Controls.hpp |
Vcl.Controls | TControl |
Description
Translate parent coordinates to client coordinates.
ParentToClient translates Point from the AParent's coordinate system to the current control's coordinate system. AParent must be a control that can be found by iterating up the chain of Parent properties. If AParent is nil (Delphi) or NULL (C++), the control's immediate parent is used.
An EInvalidOperation exception is thrown if AParent is not an ancestor control or the Parent property is nil (Delphi) or NULL (C++).