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  • Perl Imager::Screenshot not doing screenshot with default parameters

    - by Grigor
    I have the following code: use Imager::Screenshot 'screenshot'; my $img = screenshot(hwnd => 'active', left => 450, right => 200, top => 50, bottom => 50); $img->write(file => 'screenshot.png', type => 'png' ) || print "Failed: ", $img->{ERRSTR} , "\n"; it returns: "Can't call method "write" on undefined value at line 3" but when I do: use Imager::Screenshot 'screenshot'; my $img = screenshot(hwnd => 'active', left => 100, right => 300, top => 100, bottom => 300); $img->write(file => 'screenshot.png', type => 'png' ) || print "Failed: ", $img->{ERRSTR} , "\n"; it does take a screenshot. Why would the left, right, top and bottom values matter here?

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