I moved platform specific code from wxImage to wxBitmap

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9658 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/image.h

@@ -98,11 +98,14 @@ public:
     wxImage( const wxImage& image );
     wxImage( const wxImage* image );
 
+#if wxUSE_GUI
+    // convertion to/from wxBitmap (deprecated, use wxBitmap's methods instead):
     wxImage( const wxBitmap &bitmap );
     operator wxBitmap() const { return ConvertToBitmap(); }
     wxBitmap ConvertToBitmap() const;
 #ifdef __WXGTK__
     wxBitmap ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue );
+#endif
 #endif
 
     void Create( int width, int height );
@@ -137,6 +140,9 @@ public:
     // replace one colour with another
     void Replace( unsigned char r1, unsigned char g1, unsigned char b1,
                   unsigned char r2, unsigned char g2, unsigned char b2 );
+		  
+    // convert to monochrome image (<r,g,b> will be replaced by white, everything else by black)
+    wxImage ConvertToMono( unsigned char r, unsigned char g, unsigned char b );
 
     // these routines are slow but safe
     void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
@@ -229,6 +235,7 @@ private:
 
 extern void WXDLLEXPORT wxInitAllImageHandlers();
 
+WXDLLEXPORT_DATA(extern wxImage)    wxNullImage;
 
 //-----------------------------------------------------------------------------
 // wxImage handlers