+\membersection{wxS}\label{wxs}
+
+\func{wxStringCharType}{wxS}{\param{char }{ch}}
+
+\func{const wxStringCharType *}{wxS}{\param{const char *}{s}}
+
+wxS is macro which can be used with character and string literals to either
+convert them to wide characters or strings in \texttt{wchar\_t}-based Unicode
+builds or keep them unchanged in UTF-8 builds. The use of this macro is
+optional as the translation will always be done at run-time even if there is a
+mismatch between the kind of the literal used and wxStringCharType used in the
+current build, but using it can be beneficial in performance-sensitive code to
+do the conversion at compile-time instead.
+
+\wxheading{See also}
+
+\helpref{wxT}{wxt}
+
+