SAP CALL SCREEN ABAP Statements



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ID DYNPRO%
• CALL SCREEN ABAP Statement

CALL SCREEN
Short Reference

ABAP_SYNTAX
CALL SCREEN dynnr
$[STARTING AT col1 lin1
$[ENDING AT col2 lin2$]$].


ABAP Addition
... STARTING AT col1 lin1 $[ENDING AT col2 lin2$]

What does it do?
This statement calls the dynpro with the dynpro number specified in dynnr . dynnr expects a data object of the type n and the length 4. The call starts a new dynpro sequence, which is embedded in the current dynpro sequence. The dynpro with dynpro number dynnr is the initial dynpro of the dynpro sequence. In a dynpro sequence started by a transaction code, up to 50 other dynpro sequences can be nested.
The called dynpro sequence is ended when one of the dynpros involved branches to the next dynpro with the number 0. The program flow is then continued after CALL SCREEN.
The statement CALL SCREEN accesses the dynpros of the relevant main program of the current program group and these use the global data and dialog modules of the main program. If the specified dynpro does not exist in the main program of the program group, an uncatchable exception is raised.
By default, the screens of all dynpros of the called dynpro sequence are displayed in the current GUI window. The addition STARTING AT can be used to open a modal dialog box.



Latest notes:
Except when calling a dynpro from an externally called subroutine, the main program, where the dynpro must be available, is usually the current program. In an externally called subroutine, the main program depends on the organization of the programs in the ABAP_ISESS which depends on the current call sequence.
ABAP_HINT_END
• STARTING AT CALL SCREEN
• ENDING AT CALL SCREEN

ABAP Addition

What does it do?
The addition STARTING AT opens a new popup level and displays all screens of the called dynpro sequence in a modal dialog box. The upper left corner of the dialog box is determined by the values in col1 and lin1 for column and line. The values refer to the GUI window with popup level 0. The lower right corner is set automatically or col2 and lin2 can be used to specify it after ENDING AT. col1, lin1, col2, and lin2 expect data objects of the type i . The values of col1, lin1 should be less than col2 , lin2, otherwise the behavior will be undefined. The maximum popup level is 9.



Latest notes:
The called dynpro should not be a selection screen. To call a selection screen, the statement CALL SELECTION-SCREEN must be used.
When nesting dynpro sequences and creating popup levels, it must be noted that a (nested) dynpro sequence has generally already been entered when the program is being executed and that the system itself can also create other dynpro sequences or popup levels (for example, field or input help or messages in dialog boxes). For this reason, the maximum values of 50 dynpro sequences or nine popup levels within a program should never be used.
If during the processing of a modal dialog box a new dynpro sequence is called, it must be started in another popup level. In this case, the statement CALL SCREEN cannot be used without the addition STARTING AT.
When a dynpro is called in a dialog box, the window should be specified as a modal dialog box in its properties and a corresponding GUI status set beforehand. It is recommended that a dynpro sequence in a modal dialog box consists of one dynpro only.
If there is an open spool request during the execution of the statement CALL SCREEN, a new spool list level is created. The first list output in the new spool list level creates a new spool request.
ABAP_HINT_END



Runtime Exceptions

Non-catchable Exceptions
Reason for error:
Dynpro was not found.
Runtime error:
DYNPRO_NOT_FOUND
ABAP_NONCAT_END

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