+
+// extra optional parameters for DrawHeaderButton
+struct WXDLLEXPORT wxHeaderButtonParams
+{
+ wxHeaderButtonParams()
+ : m_labelAlignment(wxALIGN_LEFT)
+ { }
+
+ wxColour m_arrowColour;
+ wxColour m_selectionColour;
+ wxString m_labelText;
+ wxFont m_labelFont;
+ wxColour m_labelColour;
+ wxBitmap m_labelBitmap;
+ int m_labelAlignment;
+};
+
+enum wxHeaderSortIconType {
+ wxHDR_SORT_ICON_NONE, // Header button has no sort arrow
+ wxHDR_SORT_ICON_UP, // Header button an an up sort arrow icon
+ wxHDR_SORT_ICON_DOWN // Header button an a down sort arrow icon
+};
+
+
+// wxRendererNative interface version
+struct WXDLLEXPORT wxRendererVersion
+{
+ wxRendererVersion(int version_, int age_) : version(version_), age(age_) { }
+
+ // default copy ctor, assignment operator and dtor are ok
+
+ // the current version and age of wxRendererNative interface: different
+ // versions are incompatible (in both ways) while the ages inside the same
+ // version are upwards compatible, i.e. the version of the renderer must
+ // match the version of the main program exactly while the age may be
+ // highergreater or equal to it
+ //
+ // NB: don't forget to increment age after adding any new virtual function!
+ enum
+ {
+ Current_Version = 1,
+ Current_Age = 5
+ };
+
+
+ // check if the given version is compatible with the current one
+ static bool IsCompatible(const wxRendererVersion& ver)
+ {
+ return ver.version == Current_Version && ver.age >= Current_Age;
+ }
+
+ const int version;
+ const int age;
+};
+