Vcl.Controls.TWinControl.CreateSubClass

• Up to Parent: TWinControl

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.

See Also

• CreateParams

• CreateWindowHandle