Function: GDI_RMASK Purpose: Obtain mask of recorded images. Category: DISPLAY File: gdilib.c Author: K.G. Begeman Use: INTEGER GDI_RMASK( GDI_ID , Input INTEGER RECORDS , Output INTEGER NRECORDS ) Input INTEGER GDI_RMASK Returns zero on succes, negative on error. GDI_ID Display id as returned by GDI_OPEN. RECORDS Contains one if recorded image is present, zero if not. NRECORDS Size of RECORDS. Updates: Dec 26, 1990: KGB Document created.