Screen simulation and address of elements
You can simulate a Screen by opening its emulator. You can then see the fields and labels of the Screens as they will be displayed when the transaction is run. The overlapping errors are displayed in a dedicated view.
The Screen Emulator view
to see the simulation with the color attributes that are indicated in the Screen Definition.
to see the simulation without the color attributes that are indicated in the Screen Definition.
The colors are recognized in the internal emulator of the Software Delivery Platform, which is the default emulator. It is displayed in the Screen Emulator view, which opens when you click one of the two icons. The size of the simulation screen in this view is automatically computed from the field positions that are indicated in the Screen -CE Lines. Only the following sizes are possible: 24x80, 32x80, 43x80, and 27x132. Simulation-related preferences are available from . With these preferences, you can specify a listening port number and force the use of an external emulator for the simulation.
If modify the -CE Lines, you can see the modification in the
Screen Emulator view by clicking or
again. You can also link the Screen Emulator view with the Screen by
clicking
in the view toolbar. The view then listens to the modifications in the -CE
Lines and displays them simultaneously.
If you simulate a Screen that contains overlapping fields, an error message indicates that the address of elements is not correct for the Screen and that you must review the -CE Lines. When you click OK in the message box, you automatically switch to the Screen Address of elements view.
The Screen Address of elements view

This view is available on the instances that are present in the local workspace.
It contains a table with information that comes from the -CE Lines: column
and length of the field, field type (R for a Data Element and
L for a label), name of the called Data Element, number of repetitions for
the repetitive category, horizontal and vertical repetitions. The first column of the table contains
an error symbol on all the overlapping fields. A tooltip on the error symbol displays the position and the
name of the overlapping fields.
If you modify the -CE Lines, you can see the modification in the
Screen Address of elements view by clicking again. You can also link the view with the Screen by clicking
in the view toolbar. The view then listens to the modifications in the -CE
Lines and displays them simultaneously.
If you click in the view toolbar, the view displays the overlapping fields only.
You can generate a Screen that contains overlapping fields. A warning is displayed but the generation is not blocked.