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- $INCLUDE: 'C:\FG\INTRFACE.FOR'
-
- PROGRAM MAIN
-
- INTEGER*2 OLD_MODE
- INTEGER*2 HIDDEN
- INTEGER*2 X
- INTEGER*2 FG_GETMODE, FG_TESTMODE
-
- C initialize the video environment
-
- IF (FG_TESTMODE(13,3) .EQ. 0) THEN
- STOP 'This program requires EGA.'
- END IF
- OLD_MODE = FG_GETMODE()
- CALL FG_SETMODE(13)
-
- C draw the background on page two
-
- CALL FG_SETPAGE(2)
- CALL FG_SETCOLOR(1)
- CALL FG_RECT(0,319,0,199)
- CALL FG_SETCOLOR(15)
- CALL FG_MOVE(160,100)
- CALL FG_ELLIPSE(20,20)
-
- C slide the object across the screen
-
- HIDDEN = 1
- CALL FG_SETCOLOR(10)
- DO 10 X = -10,318,4
- CALL FG_SETPAGE(HIDDEN)
- CALL FG_TRANSFER(0,319,0,199,0,199,2,HIDDEN)
- CALL FG_CLPRECT(X,X+19,96,105)
- CALL FG_SETVPAGE(HIDDEN)
- HIDDEN = 1 - HIDDEN
- CALL FG_WAITFOR(1)
- 10 CONTINUE
-
- C restore the original video mode and return to DOS
-
- CALL FG_SETMODE(OLD_MODE)
- CALL FG_RESET
-
- STOP ' '
- END