Fill the IO buffer.
+\membersection{wxStreamBuffer::GetBufferSize}\label{wxstreambuffergetbuffersize}
+
+\constfunc{size\_t}{GetBufferSize}{\void}
+
+Returns the size of the buffer.
+
\membersection{wxStreamBuffer::GetDataLeft}\label{wxstreambuffergetdataleft}
\func{size\_t}{GetDataLeft}{\void}