Move wxVariant support for GDI classes to their

files (and thus away from wxBase).
  Add export declaration field for variant macros.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41538 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/colour.h

@@ -16,6 +16,8 @@
 #include "wx/gdiobj.h"
 
 
+class WXDLLEXPORT wxColour;
+
 // the standard wxColour constructors;
 // this macro avoids to repeat these lines across all colour.h files, since
 // Set() is a virtual function and thus cannot be called by wxColourBase
@@ -35,11 +37,18 @@
 #define wxC2S_HTML_SYNTAX       4   // return colour in #rrggbb syntax
 
 
-class WXDLLEXPORT wxColour;
-
 const unsigned char wxALPHA_TRANSPARENT = 0;
 const unsigned char wxALPHA_OPAQUE = 0xff;
 
+// ----------------------------------------------------------------------------
+// wxVariant support
+// ----------------------------------------------------------------------------
+
+#if wxUSE_VARIANT
+#include "wx/variant.h"
+DECLARE_VARIANT_OBJECT_EXPORTED(wxColour,WXDLLEXPORT)
+#endif
+
 //-----------------------------------------------------------------------------
 // wxColourBase: this class has no data members, just some functions to avoid
 //               code redundancy in all native wxColour implementations