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The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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 Usage Notes
   ■ Forms have an associated set of tools - properties, events, and methods
     - that you can use to define a form's appearance and response to
     different types of user input. You can uniquely determine the behavior
     and appearance of each individual form.
 
   ■ To create a form module, choose New Form from the File menu.
 
   ■ Form modules are private: Event and general procedures contain form
     modules that cannot be called from external modules or procedures. Form
     modules do not allow executable code at the module level.
 
   ■ Code modules are public: General procedures contain code modules that
     can be called from other modules or procedures. Executable code is
     allowed at the module level of code modules.
     See: ◄Building an Application►  ◄Module Definitions►
 
   ■ Multiple forms are often used to create an application's user interface.
     See: ◄Designing Forms►  ◄MDI Applications►
 
   ■ You can place up to 254 controls on a form. Controls placed on a form
     are referred to as children, or child controls, of the form. A form
     cannot get the focus if any of its children are able to receive the
     focus. See: ◄Parent and Child Relationships►
 
   ■ The dimensions of a form correspond to the Height and Width property
     settings. Settings specified that are less than the minimum value are
     set to the minimum value. See: ◄Height Property►  ◄Width Property►
 
   ■ A default-size form with no controls takes approximately 96 bytes of
     memory. You can use the FRE function to approximate the amount of memory
     taken up by your own forms. For example:
 
         SUB Form_Click ()
              Loaded! = FRE(-1)
              UNLOAD Form1
              Unloaded! = FRE(-1)
              SHOW
              PRINT STR$(Unloaded! - Loaded!)
         END SUB
 
     See: ◄FRE Function►