(******************************************************************************)
(*                              SAMPLE05.MOD                                  *)
(*                                                                            *)
(*                            ZoomBits Example                                *)
(* Taken from SAMPLE05.PAS - Metagraphics Software Corporation (c) 1987-1989  *)
(*                                                                            *)
(* PSW 10/31/90 09:25pm                                                       *)
(******************************************************************************)

MODULE Sample05;
(*
 *  Graphix
 *  Release 3.7
 *  (c) Copyright 1986-1992 PMI
 *  Green Bay, Wisconsin
 *  (414) 468-6040
 *  All rights reserved
 *
 *)

  IMPORT GrQry;
  IMPORT GrConst;
  IMPORT GrPorts;
  IMPORT Meta;
  IMPORT IO;

  VAR
    GrafixCard,
    CommPort:   INTEGER;
    i, j:       INTEGER;
    ch:         CHAR;
    thePort:    GrPorts.adsPort;  (* pointer to default port   *)
    theBitmap:  GrPorts.adsBMap;  (* pointer to default bitmap *)
    scrnR, dstR,
    srcR:       GrConst.rect;


BEGIN
  (* init the system *)

  GrQry.GrInit(GrafixCard, CommPort);

  i := Meta.InitGrafix(-GrafixCard);

  IF (i # 0) THEN
    (* Display reason for no go *)
    GrQry.GrInitErr(GrafixCard, CommPort, i);
  END;

  Meta.ScreenRect(scrnR);
  Meta.SetDisplay(GrConst.GrafPg0);
  Meta.EraseRect(scrnR);

  Meta.GetPort(thePort);                (* Get default port address *)
  theBitmap := thePort^.portBMap;       (* Get default bmap address *)
  Meta.MoveTo(50, 50);
  Meta.DrawString('ZoomBits');
  Meta.SetRect(srcR, 45, 40, 115, 55);
  Meta.FrameRect(srcR);
  Meta.SetRect(dstR, 50, 100, 595, 195);
  Meta.FrameRect(dstR);
  Meta.ZoomBits(theBitmap, theBitmap, srcR, dstR, dstR, 0);

  Meta.MoveTo(10, 20);
  Meta.DrawString('press return to terminate');

  ch := IO.RdChar();

  GrQry.GrQuit('', 0);
END Sample05.