Hi there, this is my first post, and first of all... sorry for my english! I have a routine that calls another routine that creates a new Tk object by the repeat method; then, I need to know if the repeat object is working before the caller routine continue with its work; I tried to do this with the select function inside the coller routine; it should wait the change of a variable I set with the callback inside the repeat object; when I do that, it seems that even the callback doesn't start, and the "wait routine" remain in the while/select loop because the variable doesn't change. thak you in advance to everyone for the patience. here some code: 
  use Tk;
  my $MW = MainWindow->new();
  ...
  ...  
  $REFRESH{xyz} = \&xyz;
  ...
# The "wait routine"
  {
    my ($WidRFR) = $REFRESH{$ID}->(); # Call the function
    while($CTRL_REFRESH < 1) { select(undef,undef,undef,0.1); } # this
+ waits until the var changes
    # Do some stuff
  }
  ...
# The routine with the repeat Object
  sub xyz{    
    my $RFR = $MW->repeat(
        500,
        sub{
        {
          $CTRL_REFRESH = 1;
          # Do some stuff....
          if(...) { $CTRL_REFRESH = 2; } # This is to notify the end o
+f the work and it Works
        }
      }
    );
    return($RFR); # Pass the object to the caller to make it able to d
+estroy it
  };
  ...

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In reply to Perl/Tk repeat method, callback doesn't work if... by NewMonkMark

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