/**
Image option names.
*/
-#define wxIMAGE_OPTION_QUALITY wxString(wxT("quality"))
-#define wxIMAGE_OPTION_FILENAME wxString(wxT("FileName"))
-#define wxIMAGE_OPTION_RESOLUTION wxString(wxT("Resolution"))
-#define wxIMAGE_OPTION_RESOLUTIONX wxString(wxT("ResolutionX"))
-#define wxIMAGE_OPTION_RESOLUTIONY wxString(wxT("ResolutionY"))
-#define wxIMAGE_OPTION_RESOLUTIONUNIT wxString(wxT("ResolutionUnit"))
-#define wxIMAGE_OPTION_MAX_WIDTH wxString(wxT("MaxWidth"))
-#define wxIMAGE_OPTION_MAX_HEIGHT wxString(wxT("MaxHeight"))
-#define wxIMAGE_OPTION_ORIGINAL_WIDTH wxString(wxT("OriginalWidth"))
-#define wxIMAGE_OPTION_ORIGINAL_HEIGHT wxString(wxT("OriginalHeight"))
-
-#define wxIMAGE_OPTION_BMP_FORMAT wxString(wxT("wxBMP_FORMAT"))
-#define wxIMAGE_OPTION_CUR_HOTSPOT_X wxString(wxT("HotSpotX"))
-#define wxIMAGE_OPTION_CUR_HOTSPOT_Y wxString(wxT("HotSpotY"))
-
-#define wxIMAGE_OPTION_GIF_COMMENT wxString(wxT("GifComment"))
-
-#define wxIMAGE_OPTION_PNG_FORMAT wxString(wxT("PngFormat"))
-#define wxIMAGE_OPTION_PNG_BITDEPTH wxString(wxT("PngBitDepth"))
-#define wxIMAGE_OPTION_PNG_FILTER wxString(wxT("PngF"))
-#define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL wxString(wxT("PngZL"))
-#define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL wxString(wxT("PngZM"))
-#define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY wxString(wxT("PngZS"))
-#define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxString(wxT("PngZB"))
-
-#define wxIMAGE_OPTION_TIFF_BITSPERSAMPLE wxString(wxT("BitsPerSample"))
-#define wxIMAGE_OPTION_TIFF_SAMPLESPERPIXEL wxString(wxT("SamplesPerPixel"))
-#define wxIMAGE_OPTION_TIFF_COMPRESSION wxString(wxT("Compression"))
-#define wxIMAGE_OPTION_TIFF_PHOTOMETRIC wxString(wxT("Photometric"))
-#define wxIMAGE_OPTION_TIFF_IMAGEDESCRIPTOR wxString(wxT("ImageDescriptor"))
+#define wxIMAGE_OPTION_QUALITY wxString("quality")
+#define wxIMAGE_OPTION_FILENAME wxString("FileName")
+#define wxIMAGE_OPTION_RESOLUTION wxString("Resolution")
+#define wxIMAGE_OPTION_RESOLUTIONX wxString("ResolutionX")
+#define wxIMAGE_OPTION_RESOLUTIONY wxString("ResolutionY")
+#define wxIMAGE_OPTION_RESOLUTIONUNIT wxString("ResolutionUnit")
+#define wxIMAGE_OPTION_MAX_WIDTH wxString("MaxWidth")
+#define wxIMAGE_OPTION_MAX_HEIGHT wxString("MaxHeight")
+#define wxIMAGE_OPTION_ORIGINAL_WIDTH wxString("OriginalWidth")
+#define wxIMAGE_OPTION_ORIGINAL_HEIGHT wxString("OriginalHeight")
+
+#define wxIMAGE_OPTION_BMP_FORMAT wxString("wxBMP_FORMAT")
+#define wxIMAGE_OPTION_CUR_HOTSPOT_X wxString("HotSpotX")
+#define wxIMAGE_OPTION_CUR_HOTSPOT_Y wxString("HotSpotY")
+
+#define wxIMAGE_OPTION_GIF_COMMENT wxString("GifComment")
+
+#define wxIMAGE_OPTION_PNG_FORMAT wxString("PngFormat")
+#define wxIMAGE_OPTION_PNG_BITDEPTH wxString("PngBitDepth")
+#define wxIMAGE_OPTION_PNG_FILTER wxString("PngF")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_LEVEL wxString("PngZL")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_MEM_LEVEL wxString("PngZM")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_STRATEGY wxString("PngZS")
+#define wxIMAGE_OPTION_PNG_COMPRESSION_BUFFER_SIZE wxString("PngZB")
+
+#define wxIMAGE_OPTION_TIFF_BITSPERSAMPLE wxString("BitsPerSample")
+#define wxIMAGE_OPTION_TIFF_SAMPLESPERPIXEL wxString("SamplesPerPixel")
+#define wxIMAGE_OPTION_TIFF_COMPRESSION wxString("Compression")
+#define wxIMAGE_OPTION_TIFF_PHOTOMETRIC wxString("Photometric")
+#define wxIMAGE_OPTION_TIFF_IMAGEDESCRIPTOR wxString("ImageDescriptor")
enum
*/
const unsigned char wxIMAGE_ALPHA_OPAQUE = 0xff;
+const unsigned char wxIMAGE_ALPHA_THRESHOLD = 0x80;
+
+
/**
@class wxImage