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OS/2 Professional
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OS2PRO194.ISO
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prgramer
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fort_lib
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demo.for
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1991-01-17
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851b
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29 lines
program demo
************************************************************************
* fl -c demo.for
* link @demo.lnk
************************************************************************
pi = 4*atan(1.)
call GrafIn ! enter graphic mode
do 20 i=1,8
call SetCol(i) ! set default color
call seed(i)
ixa = ipix(639)
iya = ipix(479)
do 10 k=1,10
ixe = ipix(639)
iye = ipix(479)
call DrwLin(ixa,iya,ixe,iye) ! draw a line using color i
ixa = ixe
iya = iye
10 continue
20 continue
read(*,*)
call GrafEx ! leave graphic mode
end
function ipix(npix) ! random pixel value
call random(val)
ipix = nint(npix*val)
end