Version 6.3.13 for Windows
 —  Programming Guide  —

System Variables

Whenever you specify an event to occur with a given dialog element, the dialog editor generates code containing the Natural system variables *CONTROL, *DIALOG-ID and *EVENT.

During the processing, *CONTROL contains the dialog element's handle, *EVENT contains the event name and *DIALOG-ID identifies an instance of a dialog.

You can reference these system variables whenever you enter Natural code within the dialog editor. If, for example, the end user clicks on a push button control and the event handler calls a shared subroutine, you can use these system variables as logical condition criteria to trigger the subroutine.

For further details on these system variables, see the System Variables documentation.

Top of page