An Introduction to Functions › Function Types › Message Functions

Message Functions

Message functions define messages that you want to appear at a workstation using special CA 2E facilities, or they define other variables for use by the function. Message functions are specified in a similar way to other function types, but are implemented using i OS message descriptions and are sent by a call to a standard CL subroutine. Their implementation as i OS message descriptions allows them to be changed for translation to another national language without affecting the calling program. They can make direct references to fields in your data model. You can also use Message functions to execute i OS command requests. The message functions are:

• Send Error Message (SNDERRMSG)
• Send Information Message (SNDINFMSG)
• Send Complete Message (SNDCMPMSG)
• Send Status Message (SNDSTSMSG)
• Retrieve Message (RTVMSG)
• Execute Message (EXCMSG)

For more information on message functions refer to the chapter Defining Functions.