GNS_IWSG - Inquire workstation scale

Description:

The size in metres of 'device units' for the specified GKS workstation is returned.

Note that device units as defined by GKS are not necessarily the same as the device resolution. On devices with a well defined actual size such as plotters and printers device units are metres and a value of 1.0 will be returned.

Invocation:

CALL GNS_IWSG( IWKID, WSSCA, STATUS )

Arguments:

IWKID = INTEGER (Given)

GKS workstation identifier

WSSCA = REAL (Returned)

Size in metres of device units

STATUS = INTEGER (Given and Returned)

The global status