my $btnButton1 = Wx::Button->new( $pnlBtns, -1, 'Button 1'); EVT_BUTTON( $pnlBtns, $btnButton1, \&btnButton1Clicked ); my $btnButton2 = Wx::Button->new( $pnlBtns, -1, 'Button 2'); EVT_BUTTON( $pnlBtns, $btnButton2, \&btnButton2Clicked );