Use the CanvasBind method and put the function call in a sub:

On the line
$can->bind( \$can, '<Button-1>', \&my_test( $root ) );
You should have
$can->CanvasBind('<Button-1>', sub { \&my_test($root) } );

Then it will work.

hope this helps,
davidj

In reply to Re: Tk bind mouse down question by davidj
in thread Tk bind mouse down question by Plankton

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