+\membersection{wxSize::DecBy}\label{wxsizedecby}
+
+\func{void}{DecBy}{\param{const wxSize\& }{size}}
+
+\func{void}{DecBy}{\param{int }{dx}, \param{int }{dy}}
+
+\func{void}{DecBy}{\param{int }{d}}
+
+Decreases the size in x- and y- directions
+
+\begin{enumerate}
+ \item By \arg{size.x} and \arg{size.y} for the first overload
+ \item By \arg{dx} and \arg{dy} for the second one
+ \item By \arg{d} and \arg{d} for the third one
+\end{enumerate}
+
+\wxheading{See also}
+
+\helpref{IncBy}{wxsizeincby}
+
+