Option Compatible Statement

Option Compatible turns on the VBA-compatible Basic compiler mode at the module level.

This statement must be added before the executable program code in a module.

The function CompatibilityMode() controls runtime mode and affects all code executed after setting or resetting the mode.

This option may affect or assist in the following situations:

Allow special characters as identifiers. all characters that are defined as letter in the Latin-1 (ISO 8859-1) character set, are accepted as part of identifiers.
Create VBA constants including non-printable characters.
Support Private/Public keywords for procedures.
Compulsory Set statement for objects.
Default values for optional parameters in procedures.
Named arguments when multiple optional parameters exist.
Preload of Collabora Office Basic libraries

Option Compatible is required when coding class modules.

Syntax:

Option Compatible

Example:

Special characters as identifiers


        Option Compatible
        ' With this option the code works, otherwise it causes a compiling error
        Sub Main
            ä = 10
            print ä
        End Sub

Statement Option VBAsupport 1 sets Option Compatible statement automatically.

Rem Statement

CompatibilityMode() Function

Option Base Statement

Option Explicit Statement

Option VBASupport Statement

Option ClassModule Statement

Variables scope modification in Using Procedures and Functions with CompatibilityMode() function.

Refer to Identifying the Operating System and Getting Session Information for class module examples, or Access2Base shared Basic library for other class examples making use of Option Compatible compiler mode.