\perlnote{In wxPerl the constraints are accessed as
\begin{verbatim}
- my( \$constraint ) = Wx::LayoutConstraints->new();
- \$constraint->centreX->AsIs();
- \$constraint->centreY->Unconstrained();
+ constraint = Wx::LayoutConstraints->new();
+ constraint->centreX->AsIs();
+ constraint->centreY->Unconstrained();
\end{verbatim}
}