Purpose: Send a message (usually a question) to a client in a popup window and wait for a response to it


  • Name: Message
    • Type: String or Expression
    • Direction: in
    • Purpose: Message to display

  • Name: MessageBoxIcon

    • Type: Enum { Info; Warning; Error }
    • Direction: in
    • Purpose: Message kind to display

  • Name: Result
    • Type: Boolean
    • Direction: out
    • PurposeFalse if user pressed 'Cancel', True if user pressed 'Ok'

Remarks: When a MessageBoxOkCancel is sent the procedure stops the execution untill the user does not provide an answer, or the timeout (10 minutes) expires. In case of timeout expiration an exception is raised.