/*                 VOPEN     INTERFACE     BLOCK                    */ 00050002
 /*                                                                  */ 00100002
 /*      NAME       :    IDAVOP1                                     */ 00150002
 /*                                                                  */ 00200002
 /*      OWNER      :    WINDOW INTERCEPT                            */ 00250002
 /*                                                                  */ 00300002
 /*      LANGUAGE   :    PL/S                                        */ 00350002
 /*                                                                  */ 00400002
 /*      DESCRIPTION:    PARAMETER CONTROL BLOCK BETWEEN IDDWITRM    */ 00450002
 /*                           AND  IDAVBPO1(VOPEN)                   */ 00500002
 /*                                                                  */ 00550002
 /*      STORAGE ACQUIRED BY WINDOW INTERCEPT                        */ 00600002
 /*                                                                  */ 00650002
 /*      REFERRED AND UPDATED BY VBP'S VOPEN                         */ 00700002
 /*                                                                  */ 00750002
     DCL 1 IDAVOP1  BASED BDY(WORD),                                    00800002
           2 VBPOHPTR    PTR(31),       /* DSPCT HEADER POINTER      */ 00850002
           2 VBPOWIA     PTR(31),       /* WINDOW ADDRESS            */ 00900002
           2 VBPOLEN     FIXED(31),     /* WINDOW LENGTH IN PAGES */    00950002
           2 VBPODSSZ    FIXED(32),     /* MAX DATASET SIZE IN BYTES */ 01000002
           2 VBPOFLG     BIT(8),        /* OPTION FLAG BYTE          */ 01050002
             3 VBPOPGLD  BIT(1),        /* PAGE LOAD REQUIRED        */ 01100002
             3 *         BIT(7);        /*   NOT USED                */ 01150002