+
+#include "wx/image.h"
+#include "wx/versioninfo.h"
+
+#define wxIMAGE_OPTION_PNG_FORMAT wxT("PngFormat")
+#define wxIMAGE_OPTION_PNG_BITDEPTH wxT("PngBitDepth")
+#define wxIMAGE_OPTION_PNG_FILTER wxT("PngF")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL wxT("PngZL")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL wxT("PngZM")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY wxT("PngZS")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxT("PngZB")
+
+enum
+{
+ wxPNG_TYPE_COLOUR = 0,
+ wxPNG_TYPE_GREY = 2,
+ wxPNG_TYPE_GREY_RED = 3
+};
+
+class WXDLLIMPEXP_CORE wxPNGHandler: public wxImageHandler