#!/usr/bin/perl use X11::Wcl; my $app_context; my $timeout; X11::Wcl::mainloop( ARGV => ["XtAppTimeout"], NO_INITIAL_RESOURCES => 1, NO_REALIZE => 1, STARTUP => \&startup, ); # called after timeout by Xt toolkit sub timeout { X11::Wcl::XtAppAddTimeOut($app_context, 1000, $timeout, undef); print "timeout\n"; } # for application-specific startup actions sub startup { my($toplevel, $_app_context) = @_; # save application context $app_context = $_app_context; $timeout = X11::Wcl::MakeXtTimerCallbackProc("::timeout"); X11::Wcl::XtAppAddTimeOut($app_context, 1000, $timeout, undef); # finally, enter the main application loop X11::Wcl::XtMainLoop(); }