I have a dialogbox, to which i populate elements(labels) on activate event. I want to remove these elements(labels) when the window is being deactivated. something like:its erroneous fragment of main code but explanatory

my $wchRW = Win32::GUI::DialogBox->new(
    -name    =>    "wchR",
    -title    =>    "whed",
    -left    =>    CW_USEDEFAULT,
    -size    =>    [300, 130],
    -parent    =>    $mw,
);

$wchRW->AddGroupbox(
    -name    =>    "wchR_gb",
    -text    =>    "being watched",
    -width    =>    $wchRW->ScaleWidth() - $padding,
    -height    =>    100,
    -left    =>    $padding/2,
);

sub wchR_Activate {
my $wchtxt = "sample";
# lbleft, lbtop are calculated here
$wchRW->AddLabel(
                -name    =>    "wchR_lb0",
                -text    =>    $wchTxt,
                -left    =>    $lbLeft,
                -top    =>    $lbTop,
            );
}
sub gitni_wchR_Deactivate {
print "Here\n";
Win32::GUI::DestroyWindow($wchRW->wchR_lb0); #this is line n
}
#i have a button in main window $mw. onclick of this button this dialo
+gbox is shown.
#sub b1_Click { $wchRW->DoModal(); return 0; }

[download]

But the problem is, "Here" in deactivate is called many times and an exception is thrown thereafter can't locate auto/wchR_.al in @INC .... line n. Freezing the main window and only option is to end process through task-manager.

Please help me out. Why "here" is printed many times? How to remove element permanently? Thanks

In reply to remove elements win32 gui by teoma

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