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Vcl.Controls.TWinControl.CreateSubClass

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Delphi

procedure CreateSubClass(var Params: TCreateParams; ControlClassName: PChar);

C++

void __fastcall CreateSubClass(TCreateParams &Params, System::WideChar * ControlClassName);

Properties

Type Visibility Source Unit Parent
procedure
function
protected
Vcl.Controls.pas
Vcl.Controls.hpp
Vcl.Controls TWinControl

Description

Creates a windowed control derived from an existing Windows window class.

Call CreateSubClass in the CreateParams method of a subclassed control, after calling the inherited CreateParams. Specify the parameter record as the value of the Params parameter. CreateSubClass allows VCL controls to create registered Windows controls.

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