changed wxImage::Rescale() to return wxImage& and not void

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5004 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/image.tex

@@ -451,11 +451,13 @@ mimetype to the named file}
 
 \membersection{wxImage::Rescale}\label{wximagerescale}
 
-\func{wxImage}{Rescale}{\param{int}{ width}, \param{int}{ height}}
+\func{wxImage \&}{Rescale}{\param{int}{ width}, \param{int}{ height}}
 
 Changes the size of the image in-place: after a call to this function, the
 image will have the given width and height.
 
+Returns the (modified) image itself.
+
 \wxheading{See also}
 
 \helpref{Scale}{wximagescale}

include/wx/image.h

@@ -255,7 +255,7 @@ public:
   wxImage Scale( int width, int height ) const;
 
   // rescales the image in place
-  void Rescale( int width, int height ) { *this = Scale(width, height); }
+  wxImage& Rescale( int width, int height ) { return *this = Scale(width, height); }
 
   // these routines are slow but safe
   void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );