Start by creating a folder.per with:

DATABASE FORMONLY

LAYOUT

FOLDER
PAGE(text=”Information”)
GRID
{

Name: [mx1 ]
Last Name: [mx2 ]
Age: [mx3 ]
Birth: [mx4 ]

}
END
END

PAGE(text=”Adress”)
VBOX
GRID
{

Street: [mx5 ]
City: [mx6 ]
Zipcode: [mx7 ]
Country: [mx8 ]

}
END
END
END
END

ATTRIBUTES

mx1 = FORMONLY.name;
mx2 = FORMONLY.lname;
mx3 = FORMONLY.age;
mx4 = FORMONLY.birth;
mx5 = FORMONLY.street;
mx6 = FORMONLY.city;
mx7 = FORMONLY.zipcode;
mx8 = FORMONLY.country;

Now we have two new commands “FOLDER” and “PAGE” FOLDER creates our new tabs and
PAGE declares the name for the new tabs.

Compile this form with “fcompile -xml folder.per”
The next step is to create our main program folder.4gl

MAIN

DEFINE name CHAR(50),
            lname CHAR(50),
            age CHAR(50),
            birth CHAR(50),
            street CHAR(255),
            city CHAR(255),
            zipcode CHAR(255),
            country CHAR(255)

      CALL ui.Interface.loadActionDefaults(”default”)
      CALL ui.Interface.LoadStyles(”default”)

      CLOSE WINDOW screen
      OPEN WINDOW w_1 WITH FORM “m_folder”

      CALL aclfgl_sendfile_to_ui("default.4st")
      CALL ui.Interface.setText(”Folder example”)

      MENU “Navigation”
            COMMAND “Ok”
            COMMAND “Edit”
                  CALL edit()
            COMMAND “Exit”
                  EXIT MENU
      END MENU

END MAIN

FUNCTION edit()
DEFINE name CHAR(50),
            lname CHAR(50),
            age CHAR(50),
            birth CHAR(50),
            street CHAR(255),
            city CHAR(255),
            zipcode CHAR(255),
            country CHAR(255)

      OPTIONS INPUT WRAP
      INPUT BY NAME name,
                    lname,
                    age,
                    birth,
                    street,
                    city,
                    zipcode,
                    country

END FUNCTION

Our folder window is now finished.
You can compile this example with “4glpc folder.4gl -o folder.4ae”