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############################################################################
#
# File: playev.icn
#
# Subject: Program to play back events
#
# Author: Ralph E. Griswold
#
# Date: August 16, 1994
#
############################################################################
#
# This file is in the public domain.
#
############################################################################
#
# This program plays back events saved by recordev. Since recordev
# uses image() for recording, some information may be lost.
#
# This program is called as
#
# playev em <history
#
# where history is a file produced by recordev.
#
############################################################################
#
# Requires: Version 9.0 MT Icon with event monitoring
#
############################################################################
#
# Links: evinit, ivalue
#
############################################################################
link evinit
link ivalue
procedure main(args)
local mask, prog
prog := load(pop(args), args) | stop("*** cannot EM")
variable("&eventsource", prog) := ¤t | stop("no eventsource?")
mask := @prog # activate EM to get its mask
while &eventcode := read() do {
&eventcode := ivalue(&eventcode) # can fail
&eventvalue := read() | break
if find(&eventcode, mask) then {
&eventvalue := ivalue(&eventvalue) # can fail
mask := event(, , prog) # pass event; get mask back
}
}
cofail(prog)
end
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