\constfunc{bool}{IsAscii}{\void}
-Returns TRUE if the string is ASCII.
+Returns TRUE if the string contains only ASCII characters.
\membersection{wxString::IsEmpty}\label{wxstringisempty}
\constfunc{bool}{IsEmpty}{\void}
-Returns TRUE if the string is NULL.
+Returns TRUE if the string is empty.
\membersection{wxString::IsNull}\label{wxstringisnull}
\constfunc{bool}{IsNull}{\void}
-Returns TRUE if the string is NULL (same as IsEmpty).
+Returns TRUE if the string is empty (same as \helpref{IsEmpty}{wxstringisempty}).
\membersection{wxString::IsNumber}\label{wxstringisnumber}
\constfunc{bool}{IsNumber}{\void}
-Returns TRUE if the string is a positive or negative integer. Will return FALSE for decimals.
+Returns TRUE if the string is an integer (with possible sign).
\membersection{wxString::IsSameAs}\label{wxstringissameas}