sintaxis para buton winApi

[Paul Young]

haber tengo una dudilla,
en el siguiente codigo cual seria la sintaxis del control button???

Código [Seleccionar] Expandir

#include <radc++.h>

//create new form
Form Form1("Evento Boton - RAD C++ Ejemplo");

//create new button
Button Button1("Soy un boton", AUTO_ID, 10, 15, 100, 150, Form1);


//create new control procedure for form, procedure1 is procedure name
FormProcedure procedure1 (FormProcArgs) {

                //capture event ON_CLOSE which is fired when form is closed, [X] is clicked
                ON_CLOSE() {
                        //exit application
                        Application.close();
                }
                //capture button click, means Button has been clicked
                ON_COMMAND_BY ( Button1 ) {
                        Form1.msgBox("Hola Universo!");
}
     
                //always return 0
                return 0;     
}

//rad c++ main program
rad_main()

                //attach the created procedure with form
                Form1.procedure = procedure1;

rad_end()