\membersection{wxFlexGridSizer::AddGrowableCol}\label{wxflexgridsizeraddgrowablecol}
-\func{void}{AddGrowableCol}{\param{size\_t }{idx}}
+\func{void}{AddGrowableCol}{\param{size\_t }{idx}, \param{int }{proportion = $0$}}
-Specifies that column idx (starting from zero) should be grown if
+Specifies that column {\it idx} (starting from zero) should be grown if
there is extra space available to the sizer.
+The {\it proportion} parameter has the same meaning as the stretch factor for
+the \helpref{sizers}{sizeroverview} except that if all proportions are $0$,
+then all columns are resized equally (instead of not being resized at all).
+
\membersection{wxFlexGridSizer::AddGrowableRow}\label{wxflexgridsizeraddgrowablerow}
-\func{void}{AddGrowableRow}{\param{size\_t }{idx}}
+\func{void}{AddGrowableRow}{\param{size\_t }{idx}, \param{int }{proportion = $0$}}
Specifies that row idx (starting from zero) should be grown if there
is extra space available to the sizer.
+See \helpref{AddGrowableCol}{wxflexgridsizeraddgrowablecol} for the description
+of {\it proportion} parameter.
+
\membersection{wxFlexGridSizer::GetFlexibleDirection}\label{wxflexgridsizergetflexibledrection}
\constfunc{int}{GetFlexibleDirections}{\void}