ByVal references in Microsoft Forms

The ByVal keyword in Microsoft Forms indicates that an argument is passed as a value; this is the standard meaning of ByVal in Visual Basic. However, in Microsoft Forms, you can use ByVal with a ReturnBoolean, ReturnEffect, ReturnInteger, or ReturnString object. When you do, the value passed is not a simple data type; it is a pointer to the object.

When used with these objects, ByVal refers to the object, not the method of passing parameters. Each of the objects listed earlier has a Value property that you can set. You can also pass that value into and out of a function. Because you can change the values of the object's members, events produce results consistent with ByRef behavior, even though the event syntax says the parameter is ByVal.

Assigning a value to an argument associated with a ReturnBoolean, ReturnEffect, ReturnInteger, or ReturnString is no different from setting the value of any other argument. For example, if the event syntax indicates a Cancel argument is used with the ReturnBoolean object, the statement is still valid, just as it is with other data types.

See also

Support and feedback

Have questions or feedback about Office VBA or this documentation? Please see Office VBA support and feedback for guidance about the ways you can receive support and provide feedback.