Message Processing
Message processing depends on the message type specified in the MESSAGE statement, and the program context in which the statement occurs.
Message Types
A |
Termination |
The message appears in a dialog box, and the program terminates. When the user has confirmed the message, control returns to the next-highest area menu. |
E |
Error |
Depending on the program context , an error dialog appears or the program terminates. |
I |
Information |
The message appears in a dialog box. Once the user has confirmed the message, the program continues immediately after the MESSAGE statement. |
S |
Status |
The program continues normally after the MESSAGE statement, and the message is displayed in the status bar of the next screen. |
W |
Warning |
Depending on the program context , an error dialog appears or the program terminates. |
X |
Exit |
No message is displayed, and the program terminates with a short dump. Program terminations with a short dump normally only occur when a runtime error occurs. Message type X allows you to force a program termination. The short dump contains the message ID. |
Contexts
Messages, especially those with type E or W, are processed according to the context in which they occur. The following sections summarize the most important context rules:
Messages Without Screens Messages on Screens Messages on Selection ScreensMessages on Lists
Messages in Function Modules and MethodsThe program DEMO_MESSAGES demonstrates how the different message types are processed in different contexts.