#!/usr/bin/perl
#############################
# Name: Clock-Tk.pl
# Desc: Display Tk clock.
#############################
use strict;
use warnings;
use Tk;

my ($n,$mw);
my $mw_width  = 420;
my $mw_height = 40;
my $mw_left   = 2570;
my $mw_top    = 20;

$mw = MainWindow->new();
$mw->geometry("${mw_width}x${mw_height}+${mw_left}+${mw_top}");
$mw->bind('<Escape>' => sub {exit;});
$mw->optionAdd('*font','Courier 20 bold');
$mw->Label(-textvariable=>\$n,-background=>'lavender')->pack;
$mw->repeat(100,sub{$n=scalar localtime time});
MainLoop();

[download]

I am running Strawberry Perl 5.24.1 on Windows 10. I copied the Tk clock one-liner that Discipulus put in Cool Uses for Perl and made it into a script, adding a "geometry" statement to place it where I want on the screen. The script runs fine. I converted the script to an executable using perl2exe Pro. The executable also runs fine.

The problem occurs when I start the executable in a cmd window with the "/b" option to free my cmd window to issue other commands. After entering "start /b Clock-Tk.exe" and pressing ENTER, I must press ENTER a second time before the program starts.

I have numerous other TK scripts that I have converted to executables using perl2exe Pro, and none of those require a second ENTER to start.

I cannot see what is unique to this program that is causing the problem. Does anyone have an idea what is causing this script to require a second ENTER in order to start?

Thanks.

"It's not how hard you work, it's how much you get done."

In reply to Tk Program Converted to Executable Requires 2 ENTERs to Run by roho

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