Sets {\it colour} to the colour at the specified location. Windows only; an X implementation
is being worked on. Not available for wxPostScriptDC or wxMetafileDC.
+\pythonnote{For wxPython the wxColour value is returned and is not
+required as a parameter.}
+
\membersection{wxDC::GetSize}\label{wxdcgetsize}
\func{void}{GetSize}{\param{long *}{width}, \param{long *}{height}}