Release 10.1A: OpenEdge Development:
Messaging and ESB

> ## setBooleanProperty procedure

> Sets a `boolean` message property.

> #### Syntax

>     PROCEDURE setBooleanProperty.
>     DEFINE INPUT PARAMETER propertyName AS CHARACTER.
>     DEFINE INPUT PARAMETER propertyValue AS LOGICAL.

> #### Applies to

> Message objects

> #### Note

> An Unknown value (`?`) is considered a `FALSE` value.

> #### See also

> clearProperties procedure

> For more information, see the "Accessing message properties" section.

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