Sets the pen join style, which may be one of {\bf wxJOIN\_BEVEL}, {\bf wxJOIN\_ROUND} and
\rtfsp{\bf wxJOIN\_MITER}. The default is {\bf wxJOIN\_ROUND}.
Sets the pen join style, which may be one of {\bf wxJOIN\_BEVEL}, {\bf wxJOIN\_ROUND} and
\rtfsp{\bf wxJOIN\_MITER}. The default is {\bf wxJOIN\_ROUND}.