#define wxIMAGE_OPTION_FILENAME wxString(_T("FileName"))
+#define wxIMAGE_OPTION_RESOLUTION wxString(_T("Resolution"))
+#define wxIMAGE_OPTION_RESOLUTIONX wxString(_T("ResolutionX"))
+#define wxIMAGE_OPTION_RESOLUTIONY wxString(_T("ResolutionY"))
+
+#define wxIMAGE_OPTION_RESOLUTIONUNIT wxString(_T("ResolutionUnit"))
+
+// constants used with wxIMAGE_OPTION_RESOLUTIONUNIT
+enum
+{
+ wxIMAGE_RESOLUTION_INCHES = 1,
+ wxIMAGE_RESOLUTION_CM = 2
+};
+
//-----------------------------------------------------------------------------
// classes
//-----------------------------------------------------------------------------
unsigned char *GetAlpha() const; // may return NULL!
bool HasAlpha() const { return GetAlpha() != NULL; }
void SetAlpha(unsigned char *alpha = NULL);
+ void InitAlpha();
// Mask functions
void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );