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Text File  |  1994-01-24  |  962 b   |  47 lines
  1. $INCLUDE: 'C:\FG\INTRFACE.FOR'
  2.  
  3.       PROGRAM MAIN
  4.  
  5.       INTEGER*2 NEW_MODE, OLD_MODE
  6.       REAL*8 XMIN, XMAX, YMIN, YMAX
  7.       INTEGER*2 FG_AUTOMODE, FG_GETMODE
  8.  
  9.       OLD_MODE = FG_GETMODE()
  10.       NEW_MODE = FG_AUTOMODE()
  11.  
  12.       IF (NEW_MODE .EQ. 0) THEN
  13.          STOP 'This program requires graphics.'
  14.       END IF
  15.  
  16.       CALL FG_SETMODE(NEW_MODE)
  17.       CALL FG_INITW
  18.  
  19.       CALL FG_SETWORLD(0.0,40.0,0.0,30.0)
  20.       CALL REDRAW
  21.       CALL FG_WAITKEY
  22.  
  23.       CALL FG_GETWORLD(XMIN,XMAX,YMIN,YMAX)
  24.       CALL FG_SETWORLD(0.0,XMAX*0.5,0.0,YMAX*0.5)
  25.       CALL REDRAW
  26.       CALL FG_WAITKEY
  27.  
  28.       CALL FG_SETMODE(OLD_MODE)
  29.       CALL FG_RESET
  30.  
  31.       STOP ' '
  32.       END
  33.  
  34.       SUBROUTINE REDRAW
  35.  
  36.       CALL FG_ERASE
  37.       CALL FG_SETCOLOR(1)
  38.  
  39.       CALL FG_MOVEW(0.0,0.0)
  40.       CALL FG_DRAWW(0.0,10.0)
  41.       CALL FG_DRAWW(10.0,10.0)
  42.       CALL FG_DRAWW(10.0,0.0)
  43.       CALL FG_DRAWW(0.0,0.0)
  44.  
  45.       RETURN
  46.       END
  47.