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.\" ========================================================================
.\"
.IX Title "waitVariableX 3pm"
.TH waitVariableX 3pm "2002-09-15" "Tk1.0" "perl/Tk Documentation"
.SH "NAME"
Tk::waitVariableX \- a waitVariable with extensions.
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& use Tk::waitVariableX;
.Ve
.PP
.Vb 1
\& $splash\->waitVariableX( [$millis, $destroy_splashscreen], \e$v1, \e$v2} );
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This subroutine waits for a list of variables, with a timeout \- the
subroutine returns when one of the variables changes value or the timeout
expires, whichever occurs first. 
.PP
Although the millisecond parameter is required, it may be zero, which
effects no timeout. The milliscond paramter may also be an array of
two elements, the first the millisecond value, and the second a 
normal Per/Tk callback. The callback is invoked just before 
waitVariableX returns.
.PP
Callback format is patterned after the Perl/Tk scheme: supply either a
code reference, or, supply an array reference and pass the callback
code reference in the first element of the array, followed by callback
arguments.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (C) 2000 \- 2002 Stephen O. Lidie. All rights reserved.
.PP
This program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.