To define multiple windows that have an overlapping view of a permanent object, define each window as though it were viewing a different object. That is, define each window under a different object identifier. To obtain the object identifiers, call CSRIDAC once for each identifier you need. Only one of the calls to CSRIDAC can specify an access mode of UPDATE. Other calls to CSRIDAC must specify an access mode of READ.

After calling CSRIDAC, call CSRVIEW or CSREVW once to define each window. On each call, specify the value BEGIN for the operation type, a different object identifier for object_id, and a different value for window_name. Define each window’s view by specifying values for offset and span that create windows with the required overlapping views.