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snapper.icn
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2001-05-02
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2KB
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64 lines
############################################################################
#
# File: snapper.icn
#
# Subject: Program to display images
#
# Authors: Ralph E. Griswold and Clinton L. Jeffery
#
# Date: May 2, 2001
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# This is just a simple program to display black-and-white versions of screen
# dumps.
#
# Type the name of an XBM or XPM file on the prompt in the input window.
# Get rid of an image by click in the image window. Exit the program
# by clicking in the input window.
#
# As an exercise, you might want to make this program more versatile --
# and perhaps write a program to do slide shows.
#
############################################################################
#
# Requires: Version 9 graphics
#
############################################################################
#
# Links: wopen
#
############################################################################
link wopen
procedure main(av)
local name, window, winput
if *av > 0 then {
every name := !av do {
(window := WOpen("label=" || name, "image=" || name,"pos=400,200")) |
write(&errout,"cannot open image ",name)
}
Active()
} else {
winput := WOpen("label=snapper! (click mouse in this window to exit)") |
stop("** can't open window")
repeat {
close(\window)
writes(winput, "next image: ")
name := read(winput)
(window := WOpen("label=" || name, "image=" || name,"pos=400,200")) |
write(winput,"cannot open image")
if Event(winput) === (&lpress | &mpress | &rpress) then
exit()
}
}
end